merge with master

README.md

@@ -41,7 +41,7 @@ https://user-images.githubusercontent.com/3120367/206125010-bd1fea8e-248a-43e7-8
   - [Community plugins](#community-plugins)
   - [Misc](#misc)
 - [FAQ](#faq)
-- [Open-source projects documenting with D2](#open-source-projects-documenting-with-d2)
+- [Notable open-source projects documenting with D2](#notable-open-source-projects-documenting-with-d2)
 
 ## What does D2 look like?
 
@@ -250,20 +250,24 @@ let us know and we'll be happy to include it here!
 - I have a private inquiry.
   - Please reach out at [hi@d2lang.com](hi@d2lang.com).
 
-## Open-source projects documenting with D2
+## Notable open-source projects documenting with D2
 
 Do you have or see an open-source project with `.d2` files? Please submit a PR adding to
-this list (ordered by star count, desc).
+this selected list of featured projects using D2.
 
-- [Block Protocol](https://github.com/blockprotocol/blockprotocol) - The Block Protocol is
+- [ElasticSearch](https://github.com/elastic/beats/blob/main/libbeat/publisher/queue/proxy/diagrams/broker.d2)
-  an open standard for building and using data-driven blocks.
+- [UC
-- [Ivy Wallet](https://github.com/Ivy-Apps/ivy-wallet) - Ivy Wallet is an open-source
+  Berkeley](https://github.com/ucb-bar/hammer/blob/2b5c04d7b7d9ee3c73575efcd7ee0698bd5bfa88/doc/Hammer-Use/hier.d2)
-  money manager app for Android.
+- [Coronacheck](https://github.com/minvws/nl-covid19-coronacheck-app-ios/blob/e1567e9d1633b3273c537a105bff0e7d3a57ecfe/Diagrams/client-side-datamodel.d2)
-- [Learn EVM Attacks](https://github.com/coinspect/learn-evm-attacks) - Learn & Contribute
+  - Official app of the Netherlands for coronavirus entry passes.
-  on previously exploited vulnerabilities across several EVM projects.
+- [Block
-- [BYCEPS](https://github.com/byceps/byceps) - BYCEPS is a self-hosted web platform to run
+  Protocol](https://github.com/blockprotocol/blockprotocol/blob/db4cf8d422b881e52113aa52467d53115270e2b3/libs/%40blockprotocol/type-system/crate/assets/overview.d2)
-  LAN parties.
+  - The Block Protocol is an open standard for building and using data-driven blocks.
-- [Re:Earth](https://github.com/reearth/reearth-web) - A free, open and highly extensible
+- [Dagger](https://github.com/dagger/dagger/tree/main/cmd/dagger-graph) - A programmable
-  WebGIS platform.
+  CI/CD engine that runs your pipelines in containers
-- [Terraform OCI VSCode Server](https://github.com/timoa/terraform-oci-vscode-server) -
+- [Ivy
-  Terraform project that deploys VSCode Server on Oracle Cloud Infrastructure.
+  Wallet](https://github.com/Ivy-Apps/ivy-wallet/blob/8062624bfa65175ec143cdc4038de27a84d38b57/assets/calc_algo.d2)
+  - Ivy Wallet is an open-source money manager app for Android.
+- [Shed
+  Skin](https://github.com/shedskin/shedskin/blob/c7929e5fe0290d734ffb7e34e4cfc2cf731c7f98/docs/assets/diagrams/shedskin.d2)
+  - Python to C++ compiler

ci/release/changelogs/next.md

@@ -3,5 +3,3 @@
 #### Improvements 🧹
 
 #### Bugfixes ⛑️
-
-- Fixes `d2` erroring on malformed user paths (`fdopendir` error). [util-go#10](https://github.com/terrastruct/util-go/pull/10)

ci/release/changelogs/v0.2.5.md

@@ -0,0 +1,28 @@
+Customizations and layouts take a big leap forward with this release! Put together, these improvements make beautiful diagrams like these possible:
+
+![mono](https://user-images.githubusercontent.com/3120367/225767298-73b6466c-c245-4df9-b9fd-9e2e4c7910c2.png)
+> [Playground link](https://play.d2lang.com/?script=rJLRasMwDEXf_RX6gYWNvnmwXxkiEampaxlLXVdK_n3IidekHfRlT8GxonvvuUmkZy4HD1cH0FOMoHymMp8BBJViDErS3gDUhB5EudDwOaBiuzBHXePlQcuJ6tXk6kMLJjkGK9DdbYeXj_W1B6E0_ONMdcDJYkPmohhbnlPwcF0i7ekbR05T-8CyQS7ckwjfmCgXHOkBSH-Jwdg-p7Gsv-HuVp4twla4-1XMe04EkUdxk3MnaUUtDjIV4eQAarUe3navbc62Ll1365qPeCDoMcaHqQ2tzjBhb35mwRpu9at62JkU5gBC5evZqiFIjni5m7dgc4og6uZT6ybjSO9_Qp2ca0JbbrbyJuB-AgAA__8%3D&theme=300&sketch=0&layout=elk&)
+
+#### Features 🚀
+
+- New class of special themes, starting with `Terminal`, and `Terminal Grayscale`. See [docs](https://d2lang.com/tour/themes/#special-themes). [#1040](https://github.com/terrastruct/d2/pull/1040), [#1041](https://github.com/terrastruct/d2/pull/1041)
+- `style.font: mono` to use a monospaced font for the text/label. See [docs](https://d2lang.com/tour/style/#font). [#1010](https://github.com/terrastruct/d2/pull/1010)
+- `border-radius` is supported for both `class` and `sql_table` shapes. Thanks to second-time contributor @donglixiaoche ! [#982](https://github.com/terrastruct/d2/pull/982)
+- Implements `style.fill-pattern`. See [docs](https://d2lang.com/tour/style#fill-pattern). [#1024](https://github.com/terrastruct/d2/pull/1024), [#1041](https://github.com/terrastruct/d2/pull/1041)
+
+#### Improvements 🧹
+
+- `dagre` layouts that have a connection where one endpoint is a container is much improved. [#1011](https://github.com/terrastruct/d2/pull/1011)
+- `elk` layouts have less bends in the routes. [#1033](https://github.com/terrastruct/d2/pull/1033)
+- `elk` layouts center nodes better. [#1028](https://github.com/terrastruct/d2/pull/1028)
+- `elk` layouts have nicer margins between node boundaries and edges. [#1028](https://github.com/terrastruct/d2/pull/1028)
+- `elk` layouts container contents are centered within. [#1038](https://github.com/terrastruct/d2/pull/1038)
+- `elk` layouts container dimensions fit label. [#1038](https://github.com/terrastruct/d2/pull/1038)
+- `sketch` draws connections with less roughness, which especially improves look of corner bends in ELK. [#1014](https://github.com/terrastruct/d2/pull/1014)
+- CSS in SVGs are diagram-specific, which means you can embed multiple D2 diagrams on a web page without fear of style conflicts. [#1016](https://github.com/terrastruct/d2/pull/1016)
+
+#### Bugfixes ⛑️
+
+- Fixes `d2` erroring on malformed user paths (`fdopendir` error). [util-go#10](https://github.com/terrastruct/util-go/pull/10)
+- Arrowhead labels being set without maps wasn't being picked up. [#1015](https://github.com/terrastruct/d2/pull/1015)
+- Fixes a `dagre` layout error with connections to a container shape with a blockstring label. [#1032](https://github.com/terrastruct/d2/pull/1032)

d2ast/d2ast.go

@@ -159,9 +159,9 @@ func (r Range) Before(r2 Range) bool {
 //
 // note: Line and Column are zero indexed.
 // note: Column and Byte are UTF-8 byte indexes unless byUTF16 was passed to Position.Advance in
-//       which they are UTF-16 code unit indexes.
+// .     which they are UTF-16 code unit indexes.
-//       If intended for Javascript consumption like in the browser or via LSP, byUTF16 is
+// .     If intended for Javascript consumption like in the browser or via LSP, byUTF16 is
-//       set to true.
+// .     set to true.
 type Position struct {
 	Line   int
 	Column int
@@ -650,10 +650,15 @@ func (mk1 *Key) Equals(mk2 *Key) bool {
 	}
 
 	if mk1.Value.Unbox() != nil {
+		if (mk1.Value.ScalarBox().Unbox() == nil) != (mk2.Value.ScalarBox().Unbox() == nil) {
+			return false
+		}
+		if mk1.Value.ScalarBox().Unbox() != nil {
 			if mk1.Value.ScalarBox().Unbox().ScalarString() != mk2.Value.ScalarBox().Unbox().ScalarString() {
 				return false
 			}
 		}
+	}
 
 	return true
 }

d2cli/main.go

@@ -275,6 +275,7 @@ func compile(ctx context.Context, ms *xmain.State, plugin d2plugin.Plugin, sketc
 	opts := &d2lib.CompileOptions{
 		Layout:  layout,
 		Ruler:   ruler,
+		ThemeID: themeID,
 	}
 	if sketch {
 		opts.FontFamily = go2.Pointer(d2fonts.HandDrawn)
@@ -432,6 +433,10 @@ func _render(ctx context.Context, ms *xmain.State, plugin d2plugin.Plugin, sketc
 		if err != nil {
 			return svg, err
 		}
+		out, err = png.AddExif(out)
+		if err != nil {
+			return svg, err
+		}
 	} else {
 		if len(out) > 0 && out[len(out)-1] != '\n' {
 			out = append(out, '\n')

d2compiler/compile.go

@@ -392,6 +392,8 @@ func compileStyleFieldInit(attrs *d2graph.Attributes, f *d2ir.Field) {
 		attrs.Style.Stroke = &d2graph.Scalar{MapKey: f.LastPrimaryKey()}
 	case "fill":
 		attrs.Style.Fill = &d2graph.Scalar{MapKey: f.LastPrimaryKey()}
+	case "fill-pattern":
+		attrs.Style.FillPattern = &d2graph.Scalar{MapKey: f.LastPrimaryKey()}
 	case "stroke-width":
 		attrs.Style.StrokeWidth = &d2graph.Scalar{MapKey: f.LastPrimaryKey()}
 	case "stroke-dash":
@@ -488,10 +490,8 @@ func (c *compiler) compileEdgeField(edge *d2graph.Edge, f *d2ir.Field) {
 	}
 
 	if f.Name == "source-arrowhead" || f.Name == "target-arrowhead" {
-		if f.Map() != nil {
 		c.compileArrowheads(edge, f)
 	}
-	}
 }
 
 func (c *compiler) compileArrowheads(edge *d2graph.Edge, f *d2ir.Field) {
@@ -508,6 +508,7 @@ func (c *compiler) compileArrowheads(edge *d2graph.Edge, f *d2ir.Field) {
 		c.compileLabel(attrs, f)
 	}
 
+	if f.Map() != nil {
 		for _, f2 := range f.Map().Fields {
 			keyword := strings.ToLower(f2.Name)
 			_, isReserved := d2graph.SimpleReservedKeywords[keyword]
@@ -525,6 +526,7 @@ func (c *compiler) compileArrowheads(edge *d2graph.Edge, f *d2ir.Field) {
 				continue
 			}
 		}
+	}
 }
 
 // TODO add more, e.g. C, bash

d2compiler/compile_test.go

@@ -242,6 +242,25 @@ containers: {
 				}
 			},
 		},
+		{
+			name: "fill-pattern",
+			text: `x: {
+	style: {
+    fill-pattern: dots
+  }
+}
+`,
+		},
+		{
+			name: "invalid-fill-pattern",
+			text: `x: {
+	style: {
+    fill-pattern: ddots
+  }
+}
+`,
+			expErr: `d2/testdata/d2compiler/TestCompile/invalid-fill-pattern.d2:3:19: expected "fill-pattern" to be one of: dots, lines, grain`,
+		},
 		{
 			name: "shape_unquoted_hex",
 
@@ -971,6 +990,17 @@ x -> y: {
 				}
 			},
 		},
+		{
+			name: "edge_arrowhead_primary",
+
+			text: `x -> y: {
+  source-arrowhead: Reisner's Rule of Conceptual Inertia
+}
+`,
+			assertions: func(t *testing.T, g *d2graph.Graph) {
+				assert.String(t, "Reisner's Rule of Conceptual Inertia", g.Edges[0].SrcArrowhead.Label.Value)
+			},
+		},
 		{
 			name: "edge_arrowhead_fields",
 

d2exporter/export.go

@@ -9,6 +9,7 @@ import (
 	"oss.terrastruct.com/d2/d2graph"
 	"oss.terrastruct.com/d2/d2renderers/d2fonts"
 	"oss.terrastruct.com/d2/d2target"
+	"oss.terrastruct.com/d2/d2themes"
 	"oss.terrastruct.com/d2/lib/color"
 )
 
@@ -20,22 +21,25 @@ func Export(ctx context.Context, g *d2graph.Graph, fontFamily *d2fonts.FontFamil
 	if fontFamily == nil {
 		fontFamily = go2.Pointer(d2fonts.SourceSansPro)
 	}
+	if g.Theme != nil && g.Theme.SpecialRules.Mono {
+		fontFamily = go2.Pointer(d2fonts.SourceCodePro)
+	}
 	diagram.FontFamily = fontFamily
 
 	diagram.Shapes = make([]d2target.Shape, len(g.Objects))
 	for i := range g.Objects {
-		diagram.Shapes[i] = toShape(g.Objects[i])
+		diagram.Shapes[i] = toShape(g.Objects[i], g.Theme)
 	}
 
 	diagram.Connections = make([]d2target.Connection, len(g.Edges))
 	for i := range g.Edges {
-		diagram.Connections[i] = toConnection(g.Edges[i])
+		diagram.Connections[i] = toConnection(g.Edges[i], g.Theme)
 	}
 
 	return diagram, nil
 }
 
-func applyTheme(shape *d2target.Shape, obj *d2graph.Object) {
+func applyTheme(shape *d2target.Shape, obj *d2graph.Object, theme *d2themes.Theme) {
 	shape.Stroke = obj.GetStroke(shape.StrokeDash)
 	shape.Fill = obj.GetFill()
 	if obj.Attributes.Shape.Value == d2target.ShapeText {
@@ -46,6 +50,23 @@ func applyTheme(shape *d2target.Shape, obj *d2graph.Object) {
 		shape.SecondaryAccentColor = color.AA2
 		shape.NeutralAccentColor = color.N2
 	}
+
+	// Theme options that change more than color
+	if theme != nil {
+		if theme.SpecialRules.OuterContainerDoubleBorder {
+			if obj.Level() == 1 && len(obj.ChildrenArray) > 0 {
+				shape.DoubleBorder = true
+			}
+		}
+		if theme.SpecialRules.ContainerDots {
+			if len(obj.ChildrenArray) > 0 {
+				shape.FillPattern = "dots"
+			}
+		}
+		if theme.SpecialRules.Mono {
+			shape.FontFamily = "mono"
+		}
+	}
 }
 
 func applyStyles(shape *d2target.Shape, obj *d2graph.Object) {
@@ -60,6 +81,9 @@ func applyStyles(shape *d2target.Shape, obj *d2graph.Object) {
 	} else if obj.Attributes.Shape.Value == d2target.ShapeText {
 		shape.Fill = "transparent"
 	}
+	if obj.Attributes.Style.FillPattern != nil {
+		shape.FillPattern = obj.Attributes.Style.FillPattern.Value
+	}
 	if obj.Attributes.Style.Stroke != nil {
 		shape.Stroke = obj.Attributes.Style.Stroke.Value
 	}
@@ -99,7 +123,7 @@ func applyStyles(shape *d2target.Shape, obj *d2graph.Object) {
 	}
 }
 
-func toShape(obj *d2graph.Object) d2target.Shape {
+func toShape(obj *d2graph.Object, theme *d2themes.Theme) d2target.Shape {
 	shape := d2target.BaseShape()
 	shape.SetType(obj.Attributes.Shape.Value)
 	shape.ID = obj.AbsID()
@@ -124,7 +148,7 @@ func toShape(obj *d2graph.Object) d2target.Shape {
 	}
 
 	applyStyles(shape, obj)
-	applyTheme(shape, obj)
+	applyTheme(shape, obj, theme)
 	shape.Color = text.GetColor(shape.Italic)
 	applyStyles(shape, obj)
 
@@ -165,7 +189,7 @@ func toShape(obj *d2graph.Object) d2target.Shape {
 	return *shape
 }
 
-func toConnection(edge *d2graph.Edge) d2target.Connection {
+func toConnection(edge *d2graph.Edge, theme *d2themes.Theme) d2target.Connection {
 	connection := d2target.BaseConnection()
 	connection.ID = edge.AbsID()
 	connection.ZIndex = edge.ZIndex
@@ -205,7 +229,9 @@ func toConnection(edge *d2graph.Edge) d2target.Connection {
 			connection.DstLabel = edge.DstArrowhead.Label.Value
 		}
 	}
-
+	if theme != nil && theme.SpecialRules.NoCornerRadius {
+		connection.BorderRadius = 0
+	}
 	if edge.Attributes.Style.BorderRadius != nil {
 		connection.BorderRadius, _ = strconv.ParseFloat(edge.Attributes.Style.BorderRadius.Value, 64)
 	}
@@ -255,6 +281,9 @@ func toConnection(edge *d2graph.Edge) d2target.Connection {
 	if edge.Attributes.Style.Bold != nil {
 		connection.Bold, _ = strconv.ParseBool(edge.Attributes.Style.Bold.Value)
 	}
+	if theme != nil && theme.SpecialRules.Mono {
+		connection.FontFamily = "mono"
+	}
 	if edge.Attributes.Style.Font != nil {
 		connection.FontFamily = edge.Attributes.Style.Font.Value
 	}

d2format/format_test.go

@@ -609,6 +609,14 @@ y
 x -> y
 # foo
 y
+`,
+		},
+		{
+			name: "less_than_edge#955",
+			in: `
+x <= y
+`,
+			exp: `x <- = y
 `,
 		},
 	}

d2graph/d2graph.go

@@ -17,6 +17,8 @@ import (
 	"oss.terrastruct.com/d2/d2renderers/d2fonts"
 	"oss.terrastruct.com/d2/d2renderers/d2latex"
 	"oss.terrastruct.com/d2/d2target"
+	"oss.terrastruct.com/d2/d2themes"
+	"oss.terrastruct.com/d2/d2themes/d2themescatalog"
 	"oss.terrastruct.com/d2/lib/color"
 	"oss.terrastruct.com/d2/lib/geo"
 	"oss.terrastruct.com/d2/lib/shape"
@@ -43,6 +45,8 @@ type Graph struct {
 	Layers    []*Graph `json:"layers,omitempty"`
 	Scenarios []*Graph `json:"scenarios,omitempty"`
 	Steps     []*Graph `json:"steps,omitempty"`
+
+	Theme *d2themes.Theme `json:"theme,omitempty"`
 }
 
 func NewGraph() *Graph {
@@ -150,6 +154,7 @@ type Style struct {
 	Opacity      *Scalar `json:"opacity,omitempty"`
 	Stroke       *Scalar `json:"stroke,omitempty"`
 	Fill         *Scalar `json:"fill,omitempty"`
+	FillPattern  *Scalar `json:"fillPattern,omitempty"`
 	StrokeWidth  *Scalar `json:"strokeWidth,omitempty"`
 	StrokeDash   *Scalar `json:"strokeDash,omitempty"`
 	BorderRadius *Scalar `json:"borderRadius,omitempty"`
@@ -198,6 +203,14 @@ func (s *Style) Apply(key, value string) error {
 			return errors.New(`expected "fill" to be a valid named color ("orange") or a hex code ("#f0ff3a")`)
 		}
 		s.Fill.Value = value
+	case "fill-pattern":
+		if s.FillPattern == nil {
+			break
+		}
+		if !go2.Contains(FillPatterns, strings.ToLower(value)) {
+			return fmt.Errorf(`expected "fill-pattern" to be one of: %s`, strings.Join(FillPatterns, ", "))
+		}
+		s.FillPattern.Value = value
 	case "stroke-width":
 		if s.StrokeWidth == nil {
 			break
@@ -259,10 +272,10 @@ func (s *Style) Apply(key, value string) error {
 		if s.Font == nil {
 			break
 		}
-		if !go2.Contains(systemFonts, strings.ToUpper(value)) {
+		if _, ok := d2fonts.D2_FONT_TO_FAMILY[strings.ToLower(value)]; !ok {
 			return fmt.Errorf(`"%v" is not a valid font in our system`, value)
 		}
-		s.Font.Value = strings.ToUpper(value)
+		s.Font.Value = strings.ToLower(value)
 	case "font-size":
 		if s.FontSize == nil {
 			break
@@ -800,6 +813,11 @@ func (obj *Object) AppendReferences(ida []string, ref Reference, unresolvedObj *
 func (obj *Object) GetLabelSize(mtexts []*d2target.MText, ruler *textmeasure.Ruler, fontFamily *d2fonts.FontFamily) (*d2target.TextDimensions, error) {
 	shapeType := strings.ToLower(obj.Attributes.Shape.Value)
 
+	if obj.Attributes.Style.Font != nil {
+		f := d2fonts.D2_FONT_TO_FAMILY[obj.Attributes.Style.Font.Value]
+		fontFamily = &f
+	}
+
 	var dims *d2target.TextDimensions
 	switch shapeType {
 	case d2target.ShapeText:
@@ -1171,6 +1189,10 @@ func getMarkdownDimensions(mtexts []*d2target.MText, ruler *textmeasure.Ruler, t
 		return d2target.NewTextDimensions(width, height), nil
 	}
 
+	if strings.TrimSpace(t.Text) == "" {
+		return d2target.NewTextDimensions(1, 1), nil
+	}
+
 	return nil, fmt.Errorf("text not pre-measured and no ruler provided")
 }
 
@@ -1240,6 +1262,11 @@ func (g *Graph) SetDimensions(mtexts []*d2target.MText, ruler *textmeasure.Ruler
 		}
 	}
 
+	if g.Theme != nil && g.Theme.SpecialRules.Mono {
+		tmp := d2fonts.SourceCodePro
+		fontFamily = &tmp
+	}
+
 	for _, obj := range g.Objects {
 		obj.Box = &geo.Box{}
 
@@ -1280,6 +1307,10 @@ func (g *Graph) SetDimensions(mtexts []*d2target.MText, ruler *textmeasure.Ruler
 			continue
 		}
 
+		if g.Theme != nil && g.Theme.SpecialRules.CapsLock {
+			obj.Attributes.Label.Value = strings.ToUpper(obj.Attributes.Label.Value)
+		}
+
 		labelDims, err := obj.GetLabelSize(mtexts, ruler, fontFamily)
 		if err != nil {
 			return err
@@ -1397,7 +1428,16 @@ func (g *Graph) SetDimensions(mtexts []*d2target.MText, ruler *textmeasure.Ruler
 			continue
 		}
 
-		dims := GetTextDimensions(mtexts, ruler, edge.Text(), fontFamily)
+		if g.Theme != nil && g.Theme.SpecialRules.CapsLock {
+			edge.Attributes.Label.Value = strings.ToUpper(edge.Attributes.Label.Value)
+		}
+		usedFont := fontFamily
+		if edge.Attributes.Style.Font != nil {
+			f := d2fonts.D2_FONT_TO_FAMILY[edge.Attributes.Style.Font.Value]
+			usedFont = &f
+		}
+
+		dims := GetTextDimensions(mtexts, ruler, edge.Text(), usedFont)
 		if dims == nil {
 			return fmt.Errorf("dimensions for edge label %#v not found", edge.Text())
 		}
@@ -1412,9 +1452,15 @@ func (g *Graph) SetDimensions(mtexts []*d2target.MText, ruler *textmeasure.Ruler
 func (g *Graph) Texts() []*d2target.MText {
 	var texts []*d2target.MText
 
+	capsLock := g.Theme != nil && g.Theme.SpecialRules.CapsLock
+
 	for _, obj := range g.Objects {
 		if obj.Attributes.Label.Value != "" {
-			texts = appendTextDedup(texts, obj.Text())
+			text := obj.Text()
+			if capsLock {
+				text.Text = strings.ToUpper(text.Text)
+			}
+			texts = appendTextDedup(texts, text)
 		}
 		if obj.Class != nil {
 			fontSize := d2fonts.FONT_SIZE_L
@@ -1441,7 +1487,11 @@ func (g *Graph) Texts() []*d2target.MText {
 	}
 	for _, edge := range g.Edges {
 		if edge.Attributes.Label.Value != "" {
-			texts = appendTextDedup(texts, edge.Text())
+			text := edge.Text()
+			if capsLock {
+				text.Text = strings.ToUpper(text.Text)
+			}
+			texts = appendTextDedup(texts, text)
 		}
 		if edge.SrcArrowhead != nil && edge.SrcArrowhead.Label.Value != "" {
 			t := edge.Text()
@@ -1497,6 +1547,7 @@ var StyleKeywords = map[string]struct{}{
 	"opacity":       {},
 	"stroke":        {},
 	"fill":          {},
+	"fill-pattern":  {},
 	"stroke-width":  {},
 	"stroke-dash":   {},
 	"border-radius": {},
@@ -1538,6 +1589,12 @@ var NearConstantsArray = []string{
 }
 var NearConstants map[string]struct{}
 
+var FillPatterns = []string{
+	"dots",
+	"lines",
+	"grain",
+}
+
 // BoardKeywords contains the keywords that create new boards.
 var BoardKeywords = map[string]struct{}{
 	"layers":    {},
@@ -1633,3 +1690,15 @@ func (obj *Object) IsDescendantOf(ancestor *Object) bool {
 	}
 	return obj.Parent.IsDescendantOf(ancestor)
 }
+
+// ApplyTheme applies themes on the graph level
+// This is different than on the render level, which only changes colors
+// A theme applied on the graph level applies special rules that change the graph
+func (g *Graph) ApplyTheme(themeID int64) error {
+	theme := d2themescatalog.Find(themeID)
+	if theme == (d2themes.Theme{}) {
+		return fmt.Errorf("theme %d not found", themeID)
+	}
+	g.Theme = &theme
+	return nil
+}

d2graph/font_helper.go

@@ -1,10 +0,0 @@
-package d2graph
-
-var systemFonts = []string{
-	"DEFAULT",
-	"SERIOUS",
-	"DIGITAL",
-	"EDUCATIONAL",
-	"NEWSPAPER",
-	"MONO",
-}

d2layouts/d2dagrelayout/layout.go

@@ -177,11 +177,27 @@ func Layout(ctx context.Context, g *d2graph.Graph, opts *ConfigurableOpts) (err
 		// we will chop the edge where it intersects the container border so it only shows the edge from the container
 		src := edge.Src
 		for len(src.Children) > 0 && src.Class == nil && src.SQLTable == nil {
-			src = src.ChildrenArray[0]
+			// We want to get the bottom node of sources, setting its rank higher than all children
+			src = getLongestEdgeChainTail(g, src)
 		}
 		dst := edge.Dst
 		for len(dst.Children) > 0 && dst.Class == nil && dst.SQLTable == nil {
 			dst = dst.ChildrenArray[0]
+
+			// We want to get the top node of destinations
+			for _, child := range dst.ChildrenArray {
+				isHead := true
+				for _, e := range g.Edges {
+					if inContainer(e.Src, child) != nil && inContainer(e.Dst, dst) != nil {
+						isHead = false
+						break
+					}
+				}
+				if isHead {
+					dst = child
+					break
+				}
+			}
 		}
 		if edge.SrcArrow && !edge.DstArrow {
 			// for `b <- a`, edge.Edge is `a -> b` and we expect this routing result
@@ -451,7 +467,7 @@ func Layout(ctx context.Context, g *d2graph.Graph, opts *ConfigurableOpts) (err
 
 		// if an edge to a container runs into its label, stop the edge at the label instead
 		overlapsContainerLabel := false
-		if edge.Dst.IsContainer() && edge.Dst.Attributes.Label.Value != "" {
+		if edge.Dst.IsContainer() && edge.Dst.Attributes.Label.Value != "" && !dstShape.Is(shape.TEXT_TYPE) {
 			// assumes LabelPosition, LabelWidth, LabelHeight are all set if there is a label
 			labelWidth := float64(*edge.Dst.LabelWidth)
 			labelHeight := float64(*edge.Dst.LabelHeight)
@@ -550,3 +566,66 @@ func generateAddParentLine(childID, parentID string) string {
 func generateAddEdgeLine(fromID, toID, edgeID string, width, height int) string {
 	return fmt.Sprintf("g.setEdge({v:`%s`, w:`%s`, name:`%s`}, { width:%d, height:%d, labelpos: `c` });\n", escapeID(fromID), escapeID(toID), escapeID(edgeID), width, height)
 }
+
+// getLongestEdgeChainTail gets the node at the end of the longest edge chain, because that will be the end of the container
+// and is what external connections should connect with
+func getLongestEdgeChainTail(g *d2graph.Graph, container *d2graph.Object) *d2graph.Object {
+	rank := make(map[*d2graph.Object]int)
+
+	for _, obj := range container.ChildrenArray {
+		isHead := true
+		for _, e := range g.Edges {
+			if inContainer(e.Src, container) != nil && inContainer(e.Dst, obj) != nil {
+				isHead = false
+				break
+			}
+		}
+		if !isHead {
+			continue
+		}
+		rank[obj] = 1
+		// BFS
+		queue := []*d2graph.Object{obj}
+		visited := make(map[*d2graph.Object]struct{})
+		for len(queue) > 0 {
+			curr := queue[0]
+			queue = queue[1:]
+			if _, ok := visited[curr]; ok {
+				continue
+			}
+			visited[curr] = struct{}{}
+			for _, e := range g.Edges {
+				child := inContainer(e.Dst, container)
+				if child == curr {
+					continue
+				}
+				if child != nil && inContainer(e.Src, curr) != nil {
+					rank[child] = go2.Max(rank[child], rank[curr]+1)
+					queue = append(queue, child)
+				}
+			}
+		}
+	}
+	max := int(math.MinInt32)
+	var tail *d2graph.Object
+	for _, obj := range container.ChildrenArray {
+		if rank[obj] >= max {
+			max = rank[obj]
+			tail = obj
+		}
+	}
+	return tail
+}
+
+func inContainer(obj, container *d2graph.Object) *d2graph.Object {
+	if obj == nil {
+		return nil
+	}
+	if obj == container {
+		return obj
+	}
+	if obj.Parent == container {
+		return obj
+	}
+	return inContainer(obj.Parent, container)
+}

d2layouts/d2elklayout/layout.go

@@ -8,6 +8,7 @@ import (
 	"context"
 	_ "embed"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"math"
 	"strings"
@@ -95,8 +96,11 @@ var DefaultOpts = ConfigurableOpts{
 }
 
 var port_spacing = 40.
+var edge_node_spacing = 40
 
 type elkOpts struct {
+	EdgeNode                     int    `json:"elk.spacing.edgeNode,omitempty"`
+	FixedAlignment               string `json:"elk.layered.nodePlacement.bk.fixedAlignment,omitempty"`
 	Thoroughness                 int    `json:"elk.layered.thoroughness,omitempty"`
 	EdgeEdgeBetweenLayersSpacing int    `json:"elk.layered.spacing.edgeEdgeBetweenLayers,omitempty"`
 	Direction                    string `json:"elk.direction"`
@@ -106,6 +110,7 @@ type elkOpts struct {
 	ConsiderModelOrder           string `json:"elk.layered.considerModelOrder.strategy,omitempty"`
 
 	NodeSizeConstraints string `json:"elk.nodeSize.constraints,omitempty"`
+	ContentAlignment    string `json:"elk.contentAlignment,omitempty"`
 	NodeSizeMinimum     string `json:"elk.nodeSize.minimum,omitempty"`
 
 	ConfigurableOpts
@@ -140,8 +145,12 @@ func Layout(ctx context.Context, g *d2graph.Graph, opts *ConfigurableOpts) (err
 		LayoutOptions: &elkOpts{
 			Thoroughness:                 8,
 			EdgeEdgeBetweenLayersSpacing: 50,
+			EdgeNode:                     edge_node_spacing,
 			HierarchyHandling:            "INCLUDE_CHILDREN",
+			FixedAlignment:               "BALANCED",
 			ConsiderModelOrder:           "NODES_AND_EDGES",
+			NodeSizeConstraints:          "MINIMUM_SIZE",
+			ContentAlignment:             "H_CENTER V_CENTER",
 			ConfigurableOpts: ConfigurableOpts{
 				Algorithm:       opts.Algorithm,
 				NodeSpacing:     opts.NodeSpacing,
@@ -218,9 +227,11 @@ func Layout(ctx context.Context, g *d2graph.Graph, opts *ConfigurableOpts) (err
 				Thoroughness:                 8,
 				EdgeEdgeBetweenLayersSpacing: 50,
 				HierarchyHandling:            "INCLUDE_CHILDREN",
+				FixedAlignment:               "BALANCED",
+				EdgeNode:                     edge_node_spacing,
 				ConsiderModelOrder:           "NODES_AND_EDGES",
-				// Why is it (height, width)? I have no clue, but it works.
+				NodeSizeConstraints:          "MINIMUM_SIZE",
-				NodeSizeMinimum: fmt.Sprintf("(%d, %d)", int(math.Ceil(height)), int(math.Ceil(width))),
+				ContentAlignment:             "H_CENTER V_CENTER",
 				ConfigurableOpts: ConfigurableOpts{
 					NodeSpacing:     opts.NodeSpacing,
 					EdgeNodeSpacing: opts.EdgeNodeSpacing,
@@ -228,11 +239,12 @@ func Layout(ctx context.Context, g *d2graph.Graph, opts *ConfigurableOpts) (err
 					Padding:         opts.Padding,
 				},
 			}
-			// Only set if specified.
+
-			// There's a bug where if it's the node label dimensions that set the NodeSizeMinimum,
+			switch elkGraph.LayoutOptions.Direction {
-			// then suddenly it's reversed back to (width, height). I must be missing something
+			case "DOWN", "UP":
-			if obj.Attributes.Width != nil || obj.Attributes.Height != nil {
+				n.LayoutOptions.NodeSizeMinimum = fmt.Sprintf("(%d, %d)", int(math.Ceil(height)), int(math.Ceil(width)))
-				n.LayoutOptions.NodeSizeConstraints = "MINIMUM_SIZE"
+			case "RIGHT", "LEFT":
+				n.LayoutOptions.NodeSizeMinimum = fmt.Sprintf("(%d, %d)", int(math.Ceil(width)), int(math.Ceil(height)))
 			}
 
 			if n.LayoutOptions.Padding == DefaultOpts.Padding {
@@ -252,6 +264,10 @@ func Layout(ctx context.Context, g *d2graph.Graph, opts *ConfigurableOpts) (err
 					paddingTop,
 				)
 			}
+		} else {
+			n.LayoutOptions = &elkOpts{
+				// Margins: "[top=100,left=100,bottom=100,right=100]",
+			}
 		}
 
 		if obj.LabelWidth != nil && obj.LabelHeight != nil {
@@ -303,7 +319,7 @@ func Layout(ctx context.Context, g *d2graph.Graph, opts *ConfigurableOpts) (err
 
 	val, err := vm.RunString(`elk.layout(graph)
 .then(s => s)
-.catch(s => s)
+.catch(err => err.message)
 `)
 
 	if err != nil {
@@ -324,7 +340,21 @@ func Layout(ctx context.Context, g *d2graph.Graph, opts *ConfigurableOpts) (err
 		continue
 	}
 
-	jsonOut := promise.Result().Export().(map[string]interface{})
+	if promise.State() == goja.PromiseStateRejected {
+		return errors.New("ELK: something went wrong")
+	}
+
+	result := promise.Result().Export()
+
+	var jsonOut map[string]interface{}
+	switch out := result.(type) {
+	case string:
+		return fmt.Errorf("ELK layout error: %s", out)
+	case map[string]interface{}:
+		jsonOut = out
+	default:
+		return fmt.Errorf("ELK unexpected return: %v", out)
+	}
 
 	jsonBytes, err := json.Marshal(jsonOut)
 	if err != nil {
@@ -417,5 +447,270 @@ func Layout(ctx context.Context, g *d2graph.Graph, opts *ConfigurableOpts) (err
 		edge.Route = points
 	}
 
+	deleteBends(g)
+
 	return nil
 }
+
+// deleteBends is a shim for ELK to delete unnecessary bends
+// see https://github.com/terrastruct/d2/issues/1030
+func deleteBends(g *d2graph.Graph) {
+	// Get rid of S-shapes at the source and the target
+	// TODO there might be value in repeating this. removal of an S shape introducing another S shape that can still be removed
+	for _, isSource := range []bool{true, false} {
+		for ei, e := range g.Edges {
+			if len(e.Route) < 4 {
+				continue
+			}
+			if e.Src == e.Dst {
+				continue
+			}
+			var endpoint *d2graph.Object
+			var start *geo.Point
+			var corner *geo.Point
+			var end *geo.Point
+
+			if isSource {
+				start = e.Route[0]
+				corner = e.Route[1]
+				end = e.Route[2]
+				endpoint = e.Src
+			} else {
+				start = e.Route[len(e.Route)-1]
+				corner = e.Route[len(e.Route)-2]
+				end = e.Route[len(e.Route)-3]
+				endpoint = e.Dst
+			}
+
+			isHorizontal := math.Ceil(start.Y) == math.Ceil(corner.Y)
+
+			// Make sure it's still attached
+			if isHorizontal {
+				if end.Y <= endpoint.TopLeft.Y+10 {
+					continue
+				}
+				if end.Y >= endpoint.TopLeft.Y+endpoint.Height-10 {
+					continue
+				}
+			} else {
+				if end.X <= endpoint.TopLeft.X+10 {
+					continue
+				}
+				if end.X >= endpoint.TopLeft.X+endpoint.Width-10 {
+					continue
+				}
+			}
+
+			var newStart *geo.Point
+			if isHorizontal {
+				newStart = geo.NewPoint(start.X, end.Y)
+			} else {
+				newStart = geo.NewPoint(end.X, start.Y)
+			}
+
+			endpointShape := shape.NewShape(d2target.DSL_SHAPE_TO_SHAPE_TYPE[strings.ToLower(endpoint.Attributes.Shape.Value)], endpoint.Box)
+			newStart = shape.TraceToShapeBorder(endpointShape, newStart, end)
+
+			// Check that the new segment doesn't collide with anything new
+
+			oldSegment := geo.NewSegment(start, corner)
+			newSegment := geo.NewSegment(newStart, end)
+
+			oldIntersects := countObjectIntersects(g, e.Src, e.Dst, *oldSegment)
+			newIntersects := countObjectIntersects(g, e.Src, e.Dst, *newSegment)
+
+			if newIntersects > oldIntersects {
+				continue
+			}
+
+			oldCrossingsCount, oldOverlapsCount, oldCloseOverlapsCount, oldTouchingCount := countEdgeIntersects(g, g.Edges[ei], *oldSegment)
+			newCrossingsCount, newOverlapsCount, newCloseOverlapsCount, newTouchingCount := countEdgeIntersects(g, g.Edges[ei], *newSegment)
+
+			if newCrossingsCount > oldCrossingsCount {
+				continue
+			}
+			if newOverlapsCount > oldOverlapsCount {
+				continue
+			}
+
+			if newCloseOverlapsCount > oldCloseOverlapsCount {
+				continue
+			}
+			if newTouchingCount > oldTouchingCount {
+				continue
+			}
+
+			// commit
+			if isSource {
+				g.Edges[ei].Route = append(
+					[]*geo.Point{newStart},
+					e.Route[3:]...,
+				)
+			} else {
+				g.Edges[ei].Route = append(
+					e.Route[:len(e.Route)-3],
+					newStart,
+				)
+			}
+		}
+	}
+	// Get rid of ladders
+	// ELK likes to do these for some reason
+	// .   ┌─
+	// . ┌─┘
+	// . │
+	// We want to transform these into L-shapes
+	for ei, e := range g.Edges {
+		if len(e.Route) < 6 {
+			continue
+		}
+		if e.Src == e.Dst {
+			continue
+		}
+
+		for i := 1; i < len(e.Route)-3; i++ {
+			before := e.Route[i-1]
+			start := e.Route[i]
+			corner := e.Route[i+1]
+			end := e.Route[i+2]
+			after := e.Route[i+3]
+
+			// S-shape on sources only concerned one segment, since the other was just along the bound of endpoint
+			// These concern two segments
+
+			var newCorner *geo.Point
+			if math.Ceil(start.X) == math.Ceil(corner.X) {
+				newCorner = geo.NewPoint(end.X, start.Y)
+				// not ladder
+				if (end.X > start.X) != (start.X > before.X) {
+					continue
+				}
+				if (end.Y > start.Y) != (after.Y > end.Y) {
+					continue
+				}
+			} else {
+				newCorner = geo.NewPoint(start.X, end.Y)
+				if (end.Y > start.Y) != (start.Y > before.Y) {
+					continue
+				}
+				if (end.X > start.X) != (after.X > end.X) {
+					continue
+				}
+			}
+
+			oldS1 := geo.NewSegment(start, corner)
+			oldS2 := geo.NewSegment(corner, end)
+
+			newS1 := geo.NewSegment(start, newCorner)
+			newS2 := geo.NewSegment(newCorner, end)
+
+			// Check that the new segments doesn't collide with anything new
+			oldIntersects := countObjectIntersects(g, e.Src, e.Dst, *oldS1) + countObjectIntersects(g, e.Src, e.Dst, *oldS2)
+			newIntersects := countObjectIntersects(g, e.Src, e.Dst, *newS1) + countObjectIntersects(g, e.Src, e.Dst, *newS2)
+
+			if newIntersects > oldIntersects {
+				continue
+			}
+
+			oldCrossingsCount1, oldOverlapsCount1, oldCloseOverlapsCount1, oldTouchingCount1 := countEdgeIntersects(g, g.Edges[ei], *oldS1)
+			oldCrossingsCount2, oldOverlapsCount2, oldCloseOverlapsCount2, oldTouchingCount2 := countEdgeIntersects(g, g.Edges[ei], *oldS2)
+			oldCrossingsCount := oldCrossingsCount1 + oldCrossingsCount2
+			oldOverlapsCount := oldOverlapsCount1 + oldOverlapsCount2
+			oldCloseOverlapsCount := oldCloseOverlapsCount1 + oldCloseOverlapsCount2
+			oldTouchingCount := oldTouchingCount1 + oldTouchingCount2
+
+			newCrossingsCount1, newOverlapsCount1, newCloseOverlapsCount1, newTouchingCount1 := countEdgeIntersects(g, g.Edges[ei], *newS1)
+			newCrossingsCount2, newOverlapsCount2, newCloseOverlapsCount2, newTouchingCount2 := countEdgeIntersects(g, g.Edges[ei], *newS2)
+			newCrossingsCount := newCrossingsCount1 + newCrossingsCount2
+			newOverlapsCount := newOverlapsCount1 + newOverlapsCount2
+			newCloseOverlapsCount := newCloseOverlapsCount1 + newCloseOverlapsCount2
+			newTouchingCount := newTouchingCount1 + newTouchingCount2
+
+			if newCrossingsCount > oldCrossingsCount {
+				continue
+			}
+			if newOverlapsCount > oldOverlapsCount {
+				continue
+			}
+
+			if newCloseOverlapsCount > oldCloseOverlapsCount {
+				continue
+			}
+			if newTouchingCount > oldTouchingCount {
+				continue
+			}
+
+			// commit
+			g.Edges[ei].Route = append(append(
+				e.Route[:i],
+				newCorner,
+			),
+				e.Route[i+3:]...,
+			)
+			break
+		}
+	}
+}
+
+func countObjectIntersects(g *d2graph.Graph, src, dst *d2graph.Object, s geo.Segment) int {
+	count := 0
+	for i, o := range g.Objects {
+		if g.Objects[i] == src || g.Objects[i] == dst {
+			continue
+		}
+		if o.Intersects(s, float64(edge_node_spacing)-1) {
+			count++
+		}
+	}
+	return count
+}
+
+// countEdgeIntersects counts both crossings AND getting too close to a parallel segment
+func countEdgeIntersects(g *d2graph.Graph, sEdge *d2graph.Edge, s geo.Segment) (int, int, int, int) {
+	isHorizontal := math.Ceil(s.Start.Y) == math.Ceil(s.End.Y)
+	crossingsCount := 0
+	overlapsCount := 0
+	closeOverlapsCount := 0
+	touchingCount := 0
+	for i, e := range g.Edges {
+		if g.Edges[i] == sEdge {
+			continue
+		}
+
+		for i := 0; i < len(e.Route)-1; i++ {
+			otherS := geo.NewSegment(e.Route[i], e.Route[i+1])
+			otherIsHorizontal := math.Ceil(otherS.Start.Y) == math.Ceil(otherS.End.Y)
+			if isHorizontal == otherIsHorizontal {
+				if s.Overlaps(*otherS, !isHorizontal, 0.) {
+					if isHorizontal {
+						if math.Abs(s.Start.Y-otherS.Start.Y) < float64(edge_node_spacing)/2. {
+							overlapsCount++
+							if math.Abs(s.Start.Y-otherS.Start.Y) < float64(edge_node_spacing)/4. {
+								closeOverlapsCount++
+								if math.Abs(s.Start.Y-otherS.Start.Y) < 1. {
+									touchingCount++
+								}
+							}
+						}
+					} else {
+						if math.Abs(s.Start.X-otherS.Start.X) < float64(edge_node_spacing)/2. {
+							overlapsCount++
+							if math.Abs(s.Start.X-otherS.Start.X) < float64(edge_node_spacing)/4. {
+								closeOverlapsCount++
+								if math.Abs(s.Start.Y-otherS.Start.Y) < 1. {
+									touchingCount++
+								}
+							}
+						}
+					}
+				}
+			} else {
+				if s.Intersects(*otherS) {
+					crossingsCount++
+				}
+			}
+		}
+
+	}
+	return crossingsCount, overlapsCount, closeOverlapsCount, touchingCount
+}

d2layouts/d2sequence/sequence_diagram.go

@@ -355,13 +355,13 @@ func (sd *sequenceDiagram) placeActors() {
 }
 
 // addLifelineEdges adds a new edge for each actor in the graph that represents the its lifeline
-// ┌──────────────┐
+// . ┌──────────────┐
-// │     actor    │
+// . │     actor    │
-// └──────┬───────┘
+// . └──────┬───────┘
-//        │
+// .        │
-//        │ lifeline
+// .        │ lifeline
-//        │
+// .        │
-//        │
+// .        │
 func (sd *sequenceDiagram) addLifelineEdges() {
 	endY := 0.
 	if len(sd.messages) > 0 {
@@ -433,17 +433,17 @@ func (sd *sequenceDiagram) placeNotes() {
 }
 
 // placeSpans places spans over the object lifeline
-// ┌──────────┐
+// . ┌──────────┐
-// │  actor   │
+// . │  actor   │
-// └────┬─────┘
+// . └────┬─────┘
-//    ┌─┴──┐
+// .    ┌─┴──┐
-//    │    │
+// .    │    │
-//    |span|
+// .    |span|
-//    │    │
+// .    │    │
-//    └─┬──┘
+// .    └─┬──┘
-//      │
+// .      │
-//   lifeline
+// .   lifeline
-//      │
+// .      │
 func (sd *sequenceDiagram) placeSpans() {
 	// quickly find the span center X
 	rankToX := make(map[int]float64)

d2lib/d2.go

@@ -22,6 +22,7 @@ type CompileOptions struct {
 	MeasuredTexts []*d2target.MText
 	Ruler         *textmeasure.Ruler
 	Layout        func(context.Context, *d2graph.Graph) error
+	ThemeID       int64
 
 	// FontFamily controls the font family used for all texts that are not the following:
 	// - code
@@ -51,6 +52,11 @@ func Compile(ctx context.Context, input string, opts *CompileOptions) (*d2target
 }
 
 func compile(ctx context.Context, g *d2graph.Graph, opts *CompileOptions) (*d2target.Diagram, error) {
+	err := g.ApplyTheme(opts.ThemeID)
+	if err != nil {
+		return nil, err
+	}
+
 	if len(g.Objects) > 0 {
 		err := g.SetDimensions(opts.MeasuredTexts, opts.Ruler, opts.FontFamily)
 		if err != nil {

d2oracle/edit.go

@@ -919,8 +919,7 @@ func deleteObject(g *d2graph.Graph, key *d2ast.KeyPath, obj *d2graph.Object) (*d
 				return !isSpecial
 			})
 			if obj.Attributes.Shape.Value == d2target.ShapeSQLTable || obj.Attributes.Shape.Value == d2target.ShapeClass {
-				ref.MapKey.Value.Map = nil
+				deleteFromMap(ref.Scope, ref.MapKey)
-				ref.MapKey.Primary = ref.MapKey.Value.ScalarBox()
 			} else if len(withoutSpecial) == 0 {
 				hoistRefChildren(g, key, ref)
 				deleteFromMap(ref.Scope, ref.MapKey)

d2oracle/edit_test.go

@@ -1858,6 +1858,32 @@ func TestMove(t *testing.T) {
 				assert.JSON(t, g.Objects[1].ID, "c")
 			},
 		},
+		{
+			name: "duplicate",
+
+			text: `a: {
+  b: {
+    shape: cylinder
+  }
+}
+
+a: {
+  b: {
+    shape: cylinder
+  }
+}
+`,
+			key:    `a.b`,
+			newKey: `b`,
+
+			exp: `a
+
+a
+b: {
+  shape: cylinder
+}
+`,
+		},
 		{
 			name: "rename_2",
 
@@ -3399,6 +3425,44 @@ func TestDelete(t *testing.T) {
 			exp: `x.y.z -> y.b
 `,
 		},
+		{
+			name: "table_refs",
+
+			text: `a: {
+  shape: sql_table
+  b
+}
+c: {
+  shape: sql_table
+  d
+}
+
+a.b
+a.b -> c.d
+`,
+			key: `a`,
+
+			exp: `c: {
+  shape: sql_table
+  d
+}
+c.d
+`,
+		},
+		{
+			name: "class_refs",
+
+			text: `a: {
+  shape: class
+	b: int
+}
+
+a.b
+`,
+			key: `a`,
+
+			exp: ``,
+		},
 		{
 			name: "edge_both_identical_childs",
 
@@ -4740,7 +4804,6 @@ a -> b
     shape: sql_table
     id: int {constraint: primary_key}
   }
-
   disks.id
 
   AWS S3 Vancouver -> disks

d2parser/parse.go

@@ -102,6 +102,7 @@ func ParseValue(value string) (d2ast.Value, error) {
 //   - streaming parser isn't really helpful.
 //   - just read into a string even and decode runes forward/back as needed
 //   - the whole file essentially exists within the parser as the AST anyway...
+//
 // TODO: ast struct that combines map & errors and pass that around
 type parser struct {
 	path  string
@@ -315,10 +316,12 @@ func (p *parser) commit() {
 //
 // TODO: make each parse function read its delimiter and return nil if not as expected
 // TODO: lookahead *must* always be empty in between parse calls. you either commit or
+//
 //	rewind in each function. if you don't, you pass a hint.
 //
 // TODO: omg we don't need two buffers, just a single lookahead and an index...
 // TODO: get rid of lookaheadPos or at least never use directly. maybe rename to beforePeekPos?
+//
 //	or better yet keep positions in the lookahead buffer.
 //	ok so plan here is to get rid of lookaheadPos and add a rewindPos that stores
 //	the pos to rewind to.

d2parser/parse_test.go

@@ -363,6 +363,20 @@ not part of block string
 			name: "edge_group_value",
 			text: `
 q.(x -> y).z: (rawr)
+`,
+		},
+		{
+			name: "less_than_edge#955",
+			text: `
+x <= y
+`,
+		},
+		{
+			name: "merged_shapes_#322",
+			text: `
+a-
+b-
+c-
 `,
 		},
 	}

d2renderers/d2fonts/d2fonts.go

@@ -211,3 +211,8 @@ func init() {
 		Style:  FONT_STYLE_BOLD,
 	}] = b
 }
+
+var D2_FONT_TO_FAMILY = map[string]FontFamily{
+	"default": SourceSansPro,
+	"mono":    SourceCodePro,
+}

d2renderers/d2sketch/sketch.go

@@ -98,6 +98,7 @@ func Rect(r *Runner, shape d2target.Shape) (string, error) {
 	pathEl := d2themes.NewThemableElement("path")
 	pathEl.SetTranslate(float64(shape.Pos.X), float64(shape.Pos.Y))
 	pathEl.Fill, pathEl.Stroke = d2themes.ShapeTheme(shape)
+	pathEl.FillPattern = shape.FillPattern
 	pathEl.ClassName = "shape"
 	pathEl.Style = shape.CSSStyle()
 	for _, p := range paths {
@@ -145,6 +146,7 @@ func DoubleRect(r *Runner, shape d2target.Shape) (string, error) {
 	pathEl := d2themes.NewThemableElement("path")
 	pathEl.SetTranslate(float64(shape.Pos.X), float64(shape.Pos.Y))
 	pathEl.Fill, pathEl.Stroke = d2themes.ShapeTheme(shape)
+	pathEl.FillPattern = shape.FillPattern
 	pathEl.ClassName = "shape"
 	pathEl.Style = shape.CSSStyle()
 	for _, p := range pathsBigRect {
@@ -192,6 +194,7 @@ func Oval(r *Runner, shape d2target.Shape) (string, error) {
 	pathEl := d2themes.NewThemableElement("path")
 	pathEl.SetTranslate(float64(shape.Pos.X), float64(shape.Pos.Y))
 	pathEl.Fill, pathEl.Stroke = d2themes.ShapeTheme(shape)
+	pathEl.FillPattern = shape.FillPattern
 	pathEl.ClassName = "shape"
 	pathEl.Style = shape.CSSStyle()
 	for _, p := range paths {
@@ -242,6 +245,7 @@ func DoubleOval(r *Runner, shape d2target.Shape) (string, error) {
 	pathEl := d2themes.NewThemableElement("path")
 	pathEl.SetTranslate(float64(shape.Pos.X), float64(shape.Pos.Y))
 	pathEl.Fill, pathEl.Stroke = d2themes.ShapeTheme(shape)
+	pathEl.FillPattern = shape.FillPattern
 	pathEl.ClassName = "shape"
 	pathEl.Style = shape.CSSStyle()
 	for _, p := range pathsBigCircle {
@@ -292,6 +296,7 @@ func Paths(r *Runner, shape d2target.Shape, paths []string) (string, error) {
 		}
 		pathEl := d2themes.NewThemableElement("path")
 		pathEl.Fill, pathEl.Stroke = d2themes.ShapeTheme(shape)
+		pathEl.FillPattern = shape.FillPattern
 		pathEl.ClassName = "shape"
 		pathEl.Style = shape.CSSStyle()
 		for _, p := range sketchPaths {
@@ -316,7 +321,7 @@ func Paths(r *Runner, shape d2target.Shape, paths []string) (string, error) {
 }
 
 func Connection(r *Runner, connection d2target.Connection, path, attrs string) (string, error) {
-	roughness := 1.0
+	roughness := 0.5
 	js := fmt.Sprintf(`node = rc.path("%s", {roughness: %f, seed: 1});`, path, roughness)
 	paths, err := computeRoughPathData(r, js)
 	if err != nil {
@@ -357,6 +362,7 @@ func Table(r *Runner, shape d2target.Shape) (string, error) {
 	pathEl := d2themes.NewThemableElement("path")
 	pathEl.SetTranslate(float64(shape.Pos.X), float64(shape.Pos.Y))
 	pathEl.Fill, pathEl.Stroke = d2themes.ShapeTheme(shape)
+	pathEl.FillPattern = shape.FillPattern
 	pathEl.ClassName = "shape"
 	pathEl.Style = shape.CSSStyle()
 	for _, p := range paths {
@@ -383,6 +389,7 @@ func Table(r *Runner, shape d2target.Shape) (string, error) {
 	pathEl = d2themes.NewThemableElement("path")
 	pathEl.SetTranslate(float64(shape.Pos.X), float64(shape.Pos.Y))
 	pathEl.Fill = shape.Fill
+	pathEl.FillPattern = shape.FillPattern
 	pathEl.ClassName = "class_header"
 	for _, p := range paths {
 		pathEl.D = p
@@ -462,6 +469,7 @@ func Table(r *Runner, shape d2target.Shape) (string, error) {
 		}
 		pathEl := d2themes.NewThemableElement("path")
 		pathEl.Fill = shape.Fill
+		pathEl.FillPattern = shape.FillPattern
 		for _, p := range paths {
 			pathEl.D = p
 			output += pathEl.Render()
@@ -496,6 +504,7 @@ func Class(r *Runner, shape d2target.Shape) (string, error) {
 	pathEl := d2themes.NewThemableElement("path")
 	pathEl.SetTranslate(float64(shape.Pos.X), float64(shape.Pos.Y))
 	pathEl.Fill, pathEl.Stroke = d2themes.ShapeTheme(shape)
+	pathEl.FillPattern = shape.FillPattern
 	pathEl.ClassName = "shape"
 	pathEl.Style = shape.CSSStyle()
 	for _, p := range paths {
@@ -523,6 +532,7 @@ func Class(r *Runner, shape d2target.Shape) (string, error) {
 	pathEl = d2themes.NewThemableElement("path")
 	pathEl.SetTranslate(float64(shape.Pos.X), float64(shape.Pos.Y))
 	pathEl.Fill = shape.Fill
+	pathEl.FillPattern = shape.FillPattern
 	pathEl.ClassName = "class_header"
 	for _, p := range paths {
 		pathEl.D = p
@@ -576,6 +586,7 @@ func Class(r *Runner, shape d2target.Shape) (string, error) {
 	}
 	pathEl = d2themes.NewThemableElement("path")
 	pathEl.Fill = shape.Fill
+	pathEl.FillPattern = shape.FillPattern
 	pathEl.ClassName = "class_header"
 	for _, p := range paths {
 		pathEl.D = p

d2renderers/d2sketch/sketch_test.go

@@ -18,9 +18,11 @@ import (
 	"oss.terrastruct.com/util-go/go2"
 
 	"oss.terrastruct.com/d2/d2layouts/d2dagrelayout"
+	"oss.terrastruct.com/d2/d2layouts/d2elklayout"
 	"oss.terrastruct.com/d2/d2lib"
 	"oss.terrastruct.com/d2/d2renderers/d2fonts"
 	"oss.terrastruct.com/d2/d2renderers/d2svg"
+	"oss.terrastruct.com/d2/d2themes/d2themescatalog"
 	"oss.terrastruct.com/d2/lib/log"
 	"oss.terrastruct.com/d2/lib/textmeasure"
 )
@@ -39,6 +41,15 @@ func TestSketch(t *testing.T) {
 			script: `winter.snow -> summer.sun
 		`,
 		},
+		{
+			name:   "elk corners",
+			engine: "elk",
+			script: `a -> b
+b -> c
+a -> c
+c -> a
+		`,
+		},
 		{
 			name: "animated",
 			script: `winter.snow -> summer.sun -> trees -> winter.snow: { style.animated: true }
@@ -495,6 +506,54 @@ darker: {
 	style.font-color: "#fff"
 	style.fill: "#000"
 }
+`,
+		},
+		{
+			name:    "terminal",
+			themeID: d2themescatalog.Terminal.ID,
+			script: `network: {
+  cell tower: {
+		satellites: {
+			shape: stored_data
+      style.multiple: true
+		}
+
+		transmitter
+
+		satellites -> transmitter: send
+		satellites -> transmitter: send
+		satellites -> transmitter: send
+  }
+
+  online portal: {
+    ui: { shape: hexagon }
+  }
+
+  data processor: {
+    storage: {
+      shape: cylinder
+      style.multiple: true
+    }
+  }
+
+  cell tower.transmitter -> data processor.storage: phone logs
+}
+
+user: {
+  shape: person
+  width: 130
+}
+
+user -> network.cell tower: make call
+user -> network.online portal.ui: access {
+  style.stroke-dash: 3
+}
+
+api server -> network.online portal.ui: display
+api server -> logs: persist
+logs: { shape: page; style.multiple: true }
+
+network.data processor -> api server
 `,
 		},
 		{
@@ -1003,6 +1062,185 @@ normal: {
   nested normal
 }
 something
+`,
+		},
+		{
+			name: "class_and_sqlTable_border_radius",
+			script: `
+				a: {
+					shape: sql_table
+					id: int {constraint: primary_key}
+					disk: int {constraint: foreign_key}
+
+					json: jsonb  {constraint: unique}
+					last_updated: timestamp with time zone
+
+					style: {
+						fill: red
+						border-radius: 0
+					}
+				}
+
+				b: {
+					shape: class
+
+					field: "[]string"
+					method(a uint64): (x, y int)
+
+					style: {
+						border-radius: 0
+					}
+				}
+
+				c: {
+					shape: class
+					style: {
+						border-radius: 0
+					}
+				}
+
+				d: {
+					shape: sql_table
+					style: {
+						border-radius: 0
+					}
+				}
+			`,
+		},
+		{
+			name: "dots-real",
+			script: `
+NETWORK: {
+  style: {
+	  stroke: black
+    fill-pattern: dots
+    double-border: true
+    fill: "#E7E9EE"
+    font: mono
+  }
+  CELL TOWER: {
+		style: {
+			stroke: black
+			fill-pattern: dots
+			fill: "#F5F6F9"
+			font: mono
+		}
+		satellites: SATELLITES {
+			shape: stored_data
+			style: {
+				font: mono
+				fill: white
+				stroke: black
+				multiple: true
+			}
+		}
+
+		transmitter: TRANSMITTER {
+			style: {
+				font: mono
+				fill: white
+				stroke: black
+			}
+		}
+
+		satellites -> transmitter: SEND {
+			style.stroke: black
+			style.font: mono
+		}
+		satellites -> transmitter: SEND {
+			style.stroke: black
+			style.font: mono
+		}
+		satellites -> transmitter: SEND {
+			style.stroke: black
+			style.font: mono
+		}
+  }
+}
+D2 Parser: {
+	style.fill-pattern: grain
+  shape: class
+
+  +reader: io.RuneReader
+  # Default visibility is + so no need to specify.
+  readerPos: d2ast.Position
+
+  # Private field.
+  -lookahead: "[]rune"
+
+  # Escape the # to prevent being parsed as comment
+  #lookaheadPos: d2ast.Position
+  # Or just wrap in quotes
+  "#peekn(n int)": (s string, eof bool)
+
+  +peek(): (r rune, eof bool)
+  rewind()
+  commit()
+}
+`,
+		},
+		{
+			name: "dots-3d",
+			script: `x: {style.3d: true; style.fill-pattern: dots}
+y: {shape: hexagon; style.3d: true; style.fill-pattern: dots}
+`,
+		},
+		{
+			name: "dots-multiple",
+			script: `
+rectangle: {shape: "rectangle"; style.fill-pattern: dots; style.multiple: true}
+square: {shape: "square"; style.fill-pattern: dots; style.multiple: true}
+page: {shape: "page"; style.fill-pattern: dots; style.multiple: true}
+parallelogram: {shape: "parallelogram"; style.fill-pattern: dots; style.multiple: true}
+document: {shape: "document"; style.fill-pattern: dots; style.multiple: true}
+cylinder: {shape: "cylinder"; style.fill-pattern: dots; style.multiple: true}
+queue: {shape: "queue"; style.fill-pattern: dots; style.multiple: true}
+package: {shape: "package"; style.fill-pattern: dots; style.multiple: true}
+step: {shape: "step"; style.fill-pattern: dots; style.multiple: true}
+callout: {shape: "callout"; style.fill-pattern: dots; style.multiple: true}
+stored_data: {shape: "stored_data"; style.fill-pattern: dots; style.multiple: true}
+person: {shape: "person"; style.fill-pattern: dots; style.multiple: true}
+diamond: {shape: "diamond"; style.fill-pattern: dots; style.multiple: true}
+oval: {shape: "oval"; style.fill-pattern: dots; style.multiple: true}
+circle: {shape: "circle"; style.fill-pattern: dots; style.multiple: true}
+hexagon: {shape: "hexagon"; style.fill-pattern: dots; style.multiple: true}
+cloud: {shape: "cloud"; style.fill-pattern: dots; style.multiple: true}
+
+rectangle -> square -> page
+parallelogram -> document -> cylinder
+queue -> package -> step
+callout -> stored_data -> person
+diamond -> oval -> circle
+hexagon -> cloud
+`,
+		},
+		{
+			name: "dots-all",
+			script: `
+rectangle: {shape: "rectangle"; style.fill-pattern: dots}
+square: {shape: "square"; style.fill-pattern: dots}
+page: {shape: "page"; style.fill-pattern: dots}
+parallelogram: {shape: "parallelogram"; style.fill-pattern: dots}
+document: {shape: "document"; style.fill-pattern: dots}
+cylinder: {shape: "cylinder"; style.fill-pattern: dots}
+queue: {shape: "queue"; style.fill-pattern: dots}
+package: {shape: "package"; style.fill-pattern: dots}
+step: {shape: "step"; style.fill-pattern: dots}
+callout: {shape: "callout"; style.fill-pattern: dots}
+stored_data: {shape: "stored_data"; style.fill-pattern: dots}
+person: {shape: "person"; style.fill-pattern: dots}
+diamond: {shape: "diamond"; style.fill-pattern: dots}
+oval: {shape: "oval"; style.fill-pattern: dots}
+circle: {shape: "circle"; style.fill-pattern: dots}
+hexagon: {shape: "hexagon"; style.fill-pattern: dots}
+cloud: {shape: "cloud"; style.fill-pattern: dots}
+
+rectangle -> square -> page
+parallelogram -> document -> cylinder
+queue -> package -> step
+callout -> stored_data -> person
+diamond -> oval -> circle
+hexagon -> cloud
 `,
 		},
 	}
@@ -1014,6 +1252,7 @@ type testCase struct {
 	themeID int64
 	script  string
 	skip    bool
+	engine  string
 }
 
 func runa(t *testing.T, tcs []testCase) {
@@ -1040,10 +1279,15 @@ func run(t *testing.T, tc testCase) {
 		return
 	}
 
+	layout := d2dagrelayout.DefaultLayout
+	if strings.EqualFold(tc.engine, "elk") {
+		layout = d2elklayout.DefaultLayout
+	}
 	diagram, _, err := d2lib.Compile(ctx, tc.script, &d2lib.CompileOptions{
 		Ruler:      ruler,
-		Layout:     d2dagrelayout.DefaultLayout,
+		Layout:     layout,
 		FontFamily: go2.Pointer(d2fonts.HandDrawn),
+		ThemeID:    tc.themeID,
 	})
 	if !tassert.Nil(t, err) {
 		return

d2renderers/d2svg/appendix/appendix_test.go

@@ -138,6 +138,7 @@ func run(t *testing.T, tc testCase) {
 	diagram, _, err := d2lib.Compile(ctx, tc.script, &d2lib.CompileOptions{
 		Ruler:   ruler,
 		Layout:  d2dagrelayout.DefaultLayout,
+		ThemeID: tc.themeID,
 	})
 	if !tassert.Nil(t, err) {
 		return

d2renderers/d2svg/class.go

@@ -11,12 +11,16 @@ import (
 	"oss.terrastruct.com/d2/lib/svg"
 )
 
-func classHeader(shape d2target.Shape, box *geo.Box, text string, textWidth, textHeight, fontSize float64) string {
+func classHeader(diagramHash string, shape d2target.Shape, box *geo.Box, text string, textWidth, textHeight, fontSize float64) string {
 	rectEl := d2themes.NewThemableElement("rect")
 	rectEl.X, rectEl.Y = box.TopLeft.X, box.TopLeft.Y
 	rectEl.Width, rectEl.Height = box.Width, box.Height
 	rectEl.Fill = shape.Fill
+	rectEl.FillPattern = shape.FillPattern
 	rectEl.ClassName = "class_header"
+	if shape.BorderRadius != 0 {
+		rectEl.ClipPath = fmt.Sprintf("%v-%v", diagramHash, shape.ID)
+	}
 	str := rectEl.Render()
 
 	if text != "" {
@@ -81,14 +85,19 @@ func classRow(shape d2target.Shape, box *geo.Box, prefix, nameText, typeText str
 	return out
 }
 
-func drawClass(writer io.Writer, targetShape d2target.Shape) {
+func drawClass(writer io.Writer, diagramHash string, targetShape d2target.Shape) {
 	el := d2themes.NewThemableElement("rect")
 	el.X = float64(targetShape.Pos.X)
 	el.Y = float64(targetShape.Pos.Y)
 	el.Width = float64(targetShape.Width)
 	el.Height = float64(targetShape.Height)
 	el.Fill, el.Stroke = d2themes.ShapeTheme(targetShape)
+	el.FillPattern = targetShape.FillPattern
 	el.Style = targetShape.CSSStyle()
+	if targetShape.BorderRadius != 0 {
+		el.Rx = float64(targetShape.BorderRadius)
+		el.Ry = float64(targetShape.BorderRadius)
+	}
 	fmt.Fprint(writer, el.Render())
 
 	box := geo.NewBox(
@@ -100,7 +109,7 @@ func drawClass(writer io.Writer, targetShape d2target.Shape) {
 	headerBox := geo.NewBox(box.TopLeft, box.Width, 2*rowHeight)
 
 	fmt.Fprint(writer,
-		classHeader(targetShape, headerBox, targetShape.Label, float64(targetShape.LabelWidth), float64(targetShape.LabelHeight), float64(targetShape.FontSize)),
+		classHeader(diagramHash, targetShape, headerBox, targetShape.Label, float64(targetShape.LabelWidth), float64(targetShape.LabelHeight), float64(targetShape.FontSize)),
 	)
 
 	rowBox := geo.NewBox(box.TopLeft.Copy(), box.Width, rowHeight)
@@ -113,8 +122,15 @@ func drawClass(writer io.Writer, targetShape d2target.Shape) {
 	}
 
 	lineEl := d2themes.NewThemableElement("line")
+
+	if targetShape.BorderRadius != 0 && len(targetShape.Methods) == 0 {
+		lineEl.X1, lineEl.Y1 = rowBox.TopLeft.X+float64(targetShape.BorderRadius), rowBox.TopLeft.Y
+		lineEl.X2, lineEl.Y2 = rowBox.TopLeft.X+rowBox.Width-float64(targetShape.BorderRadius), rowBox.TopLeft.Y
+	} else {
 		lineEl.X1, lineEl.Y1 = rowBox.TopLeft.X, rowBox.TopLeft.Y
 		lineEl.X2, lineEl.Y2 = rowBox.TopLeft.X+rowBox.Width, rowBox.TopLeft.Y
+	}
+
 	lineEl.Stroke = targetShape.Fill
 	lineEl.Style = "stroke-width:1"
 	fmt.Fprint(writer, lineEl.Render())

d2renderers/d2svg/d2svg.go

@@ -35,6 +35,7 @@ import (
 	"oss.terrastruct.com/d2/lib/shape"
 	"oss.terrastruct.com/d2/lib/svg"
 	"oss.terrastruct.com/d2/lib/textmeasure"
+	"oss.terrastruct.com/d2/lib/version"
 )
 
 const (
@@ -58,6 +59,15 @@ var baseStylesheet string
 //go:embed github-markdown.css
 var mdCSS string
 
+//go:embed dots.txt
+var dots string
+
+//go:embed lines.txt
+var lines string
+
+//go:embed grain.txt
+var grain string
+
 type RenderOpts struct {
 	Pad         int
 	Sketch      bool
@@ -558,6 +568,9 @@ func drawConnection(writer io.Writer, labelMaskID string, connection d2target.Co
 
 	if connection.Label != "" {
 		fontClass := "text"
+		if connection.FontFamily == "mono" {
+			fontClass = "text-mono"
+		}
 		if connection.Bold {
 			fontClass += "-bold"
 		} else if connection.Italic {
@@ -617,21 +630,22 @@ func renderArrowheadLabel(connection d2target.Connection, text string, position,
 	return textEl.Render()
 }
 
-func renderOval(tl *geo.Point, width, height float64, fill, stroke, style string) string {
+func renderOval(tl *geo.Point, width, height float64, fill, fillPattern, stroke, style string) string {
 	el := d2themes.NewThemableElement("ellipse")
 	el.Rx = width / 2
 	el.Ry = height / 2
 	el.Cx = tl.X + el.Rx
 	el.Cy = tl.Y + el.Ry
 	el.Fill, el.Stroke = fill, stroke
+	el.FillPattern = fillPattern
 	el.ClassName = "shape"
 	el.Style = style
 	return el.Render()
 }
 
-func renderDoubleOval(tl *geo.Point, width, height float64, fill, stroke, style string) string {
+func renderDoubleOval(tl *geo.Point, width, height float64, fill, fillStroke, stroke, style string) string {
 	var innerTL *geo.Point = tl.AddVector(geo.NewVector(d2target.INNER_BORDER_OFFSET, d2target.INNER_BORDER_OFFSET))
-	return renderOval(tl, width, height, fill, stroke, style) + renderOval(innerTL, width-10, height-10, fill, stroke, style)
+	return renderOval(tl, width, height, fill, fillStroke, stroke, style) + renderOval(innerTL, width-10, height-10, fill, "", stroke, style)
 }
 
 func defineShadowFilter(writer io.Writer) {
@@ -709,6 +723,7 @@ func render3dRect(targetShape d2target.Shape) string {
 	mainShape.SetMaskUrl(maskID)
 	mainShapeFill, _ := d2themes.ShapeTheme(targetShape)
 	mainShape.Fill = mainShapeFill
+	mainShape.FillPattern = targetShape.FillPattern
 	mainShape.Stroke = color.None
 	mainShape.Style = targetShape.CSSStyle()
 	mainShapeRendered := mainShape.Render()
@@ -829,6 +844,7 @@ func render3dHexagon(targetShape d2target.Shape) string {
 	mainShape.Points = mainPointsPoly
 	mainShape.SetMaskUrl(maskID)
 	mainShapeFill, _ := d2themes.ShapeTheme(targetShape)
+	mainShape.FillPattern = targetShape.FillPattern
 	mainShape.Fill = mainShapeFill
 	mainShape.Stroke = color.None
 	mainShape.Style = targetShape.CSSStyle()
@@ -865,7 +881,7 @@ func render3dHexagon(targetShape d2target.Shape) string {
 	return borderMask + mainShapeRendered + renderedSides + renderedBorder
 }
 
-func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2sketch.Runner) (labelMask string, err error) {
+func drawShape(writer io.Writer, diagramHash string, targetShape d2target.Shape, sketchRunner *d2sketch.Runner) (labelMask string, err error) {
 	closingTag := "</g>"
 	if targetShape.Link != "" {
 
@@ -877,6 +893,11 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 	if targetShape.Opacity != 1.0 {
 		opacityStyle = fmt.Sprintf(" style='opacity:%f'", targetShape.Opacity)
 	}
+
+	// this clipPath must be defined outside `g` element
+	if targetShape.BorderRadius != 0 && (targetShape.Type == d2target.ShapeClass || targetShape.Type == d2target.ShapeSQLTable) {
+		fmt.Fprint(writer, clipPathForBorderRadius(diagramHash, targetShape))
+	}
 	fmt.Fprintf(writer, `<g id="%s"%s>`, svg.EscapeText(targetShape.ID), opacityStyle)
 	tl := geo.NewPoint(float64(targetShape.Pos.X), float64(targetShape.Pos.Y))
 	width := float64(targetShape.Width)
@@ -920,7 +941,7 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 			}
 			fmt.Fprint(writer, out)
 		} else {
-			drawClass(writer, targetShape)
+			drawClass(writer, diagramHash, targetShape)
 		}
 		addAppendixItems(writer, targetShape)
 		fmt.Fprint(writer, `</g>`)
@@ -934,7 +955,7 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 			}
 			fmt.Fprint(writer, out)
 		} else {
-			drawTable(writer, targetShape)
+			drawTable(writer, diagramHash, targetShape)
 		}
 		addAppendixItems(writer, targetShape)
 		fmt.Fprint(writer, `</g>`)
@@ -943,7 +964,7 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 	case d2target.ShapeOval:
 		if targetShape.DoubleBorder {
 			if targetShape.Multiple {
-				fmt.Fprint(writer, renderDoubleOval(multipleTL, width, height, fill, stroke, style))
+				fmt.Fprint(writer, renderDoubleOval(multipleTL, width, height, fill, "", stroke, style))
 			}
 			if sketchRunner != nil {
 				out, err := d2sketch.DoubleOval(sketchRunner, targetShape)
@@ -952,11 +973,11 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 				}
 				fmt.Fprint(writer, out)
 			} else {
-				fmt.Fprint(writer, renderDoubleOval(tl, width, height, fill, stroke, style))
+				fmt.Fprint(writer, renderDoubleOval(tl, width, height, fill, targetShape.FillPattern, stroke, style))
 			}
 		} else {
 			if targetShape.Multiple {
-				fmt.Fprint(writer, renderOval(multipleTL, width, height, fill, stroke, style))
+				fmt.Fprint(writer, renderOval(multipleTL, width, height, fill, "", stroke, style))
 			}
 			if sketchRunner != nil {
 				out, err := d2sketch.Oval(sketchRunner, targetShape)
@@ -965,7 +986,7 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 				}
 				fmt.Fprint(writer, out)
 			} else {
-				fmt.Fprint(writer, renderOval(tl, width, height, fill, stroke, style))
+				fmt.Fprint(writer, renderOval(tl, width, height, fill, targetShape.FillPattern, stroke, style))
 			}
 		}
 
@@ -1013,6 +1034,7 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 					el.Width = float64(targetShape.Width)
 					el.Height = float64(targetShape.Height)
 					el.Fill = fill
+					el.FillPattern = targetShape.FillPattern
 					el.Stroke = stroke
 					el.Style = style
 					el.Rx = targetShape.BorderRadius
@@ -1027,6 +1049,7 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 					el.Width = float64(targetShape.Width)
 					el.Height = float64(targetShape.Height)
 					el.Fill = fill
+					el.FillPattern = targetShape.FillPattern
 					el.Stroke = stroke
 					el.Style = style
 					el.Rx = targetShape.BorderRadius
@@ -1058,6 +1081,7 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 					el.Width = float64(targetShape.Width)
 					el.Height = float64(targetShape.Height)
 					el.Fill = fill
+					el.FillPattern = targetShape.FillPattern
 					el.Stroke = stroke
 					el.Style = style
 					el.Rx = targetShape.BorderRadius
@@ -1069,7 +1093,7 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 					el.Y = float64(targetShape.Pos.Y + d2target.INNER_BORDER_OFFSET)
 					el.Width = float64(targetShape.Width - 2*d2target.INNER_BORDER_OFFSET)
 					el.Height = float64(targetShape.Height - 2*d2target.INNER_BORDER_OFFSET)
-					el.Fill = fill
+					el.Fill = "transparent"
 					el.Stroke = stroke
 					el.Style = style
 					el.Rx = targetShape.BorderRadius
@@ -1103,6 +1127,7 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 			} else {
 				el := d2themes.NewThemableElement("path")
 				el.Fill = fill
+				el.FillPattern = targetShape.FillPattern
 				el.Stroke = stroke
 				el.Style = style
 				for _, pathData := range s.GetSVGPathData() {
@@ -1134,6 +1159,7 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 		} else {
 			el := d2themes.NewThemableElement("path")
 			el.Fill = fill
+			el.FillPattern = targetShape.FillPattern
 			el.Stroke = stroke
 			el.Style = style
 			for _, pathData := range s.GetSVGPathData() {
@@ -1186,11 +1212,15 @@ func drawShape(writer io.Writer, targetShape d2target.Shape, sketchRunner *d2ske
 		)
 
 		fontClass := "text"
+		if targetShape.FontFamily == "mono" {
+			fontClass = "text-mono"
+		} else {
 			if targetShape.Bold {
 				fontClass += "-bold"
 			} else if targetShape.Italic {
 				fontClass += "-italic"
 			}
+		}
 		if targetShape.Underline {
 			fontClass += " text-underline"
 		}
@@ -1348,7 +1378,7 @@ func RenderText(text string, x, height float64) string {
 	return strings.Join(rendered, "")
 }
 
-func embedFonts(buf *bytes.Buffer, source string, fontFamily *d2fonts.FontFamily) {
+func embedFonts(buf *bytes.Buffer, diagramHash, source string, fontFamily *d2fonts.FontFamily) {
 	fmt.Fprint(buf, `<style type="text/css"><![CDATA[`)
 
 	appendOnTrigger(
@@ -1360,13 +1390,16 @@ func embedFonts(buf *bytes.Buffer, source string, fontFamily *d2fonts.FontFamily
 			`class="md"`,
 		},
 		fmt.Sprintf(`
-.text {
+.%s .text {
-	font-family: "font-regular";
+	font-family: "%s-font-regular";
 }
 @font-face {
-	font-family: font-regular;
+	font-family: %s-font-regular;
 	src: url("%s");
 }`,
+			diagramHash,
+			diagramHash,
+			diagramHash,
 			d2fonts.FontEncodings[fontFamily.Font(0, d2fonts.FONT_STYLE_REGULAR)],
 		),
 	)
@@ -1419,13 +1452,16 @@ func embedFonts(buf *bytes.Buffer, source string, fontFamily *d2fonts.FontFamily
 			`<strong>`,
 		},
 		fmt.Sprintf(`
-.text-bold {
+.%s .text-bold {
-	font-family: "font-bold";
+	font-family: "%s-font-bold";
 }
 @font-face {
-	font-family: font-bold;
+	font-family: %s-font-bold;
 	src: url("%s");
 }`,
+			diagramHash,
+			diagramHash,
+			diagramHash,
 			d2fonts.FontEncodings[fontFamily.Font(0, d2fonts.FONT_STYLE_BOLD)],
 		),
 	)
@@ -1439,13 +1475,16 @@ func embedFonts(buf *bytes.Buffer, source string, fontFamily *d2fonts.FontFamily
 			`<dfn>`,
 		},
 		fmt.Sprintf(`
-.text-italic {
+.%s .text-italic {
-	font-family: "font-italic";
+	font-family: "%s-font-italic";
 }
 @font-face {
-	font-family: font-italic;
+	font-family: %s-font-italic;
 	src: url("%s");
 }`,
+			diagramHash,
+			diagramHash,
+			diagramHash,
 			d2fonts.FontEncodings[fontFamily.Font(0, d2fonts.FONT_STYLE_ITALIC)],
 		),
 	)
@@ -1461,13 +1500,16 @@ func embedFonts(buf *bytes.Buffer, source string, fontFamily *d2fonts.FontFamily
 			`<samp>`,
 		},
 		fmt.Sprintf(`
-.text-mono {
+.%s .text-mono {
-	font-family: "font-mono";
+	font-family: "%s-font-mono";
 }
 @font-face {
-	font-family: font-mono;
+	font-family: %s-font-mono;
 	src: url("%s");
 }`,
+			diagramHash,
+			diagramHash,
+			diagramHash,
 			d2fonts.FontEncodings[d2fonts.SourceCodePro.Font(0, d2fonts.FONT_STYLE_REGULAR)],
 		),
 	)
@@ -1476,16 +1518,19 @@ func embedFonts(buf *bytes.Buffer, source string, fontFamily *d2fonts.FontFamily
 		buf,
 		source,
 		[]string{
-			`class="text-mono-bold"`,
+			`class="text-mono-bold`,
 		},
 		fmt.Sprintf(`
-.text-mono-bold {
+.%s .text-mono-bold {
-	font-family: "font-mono-bold";
+	font-family: "%s-font-mono-bold";
 }
 @font-face {
-	font-family: font-mono-bold;
+	font-family: %s-font-mono-bold;
 	src: url("%s");
 }`,
+			diagramHash,
+			diagramHash,
+			diagramHash,
 			d2fonts.FontEncodings[d2fonts.SourceCodePro.Font(0, d2fonts.FONT_STYLE_BOLD)],
 		),
 	)
@@ -1494,52 +1539,19 @@ func embedFonts(buf *bytes.Buffer, source string, fontFamily *d2fonts.FontFamily
 		buf,
 		source,
 		[]string{
-			`class="text-mono-italic"`,
+			`class="text-mono-italic`,
 		},
 		fmt.Sprintf(`
-.text-mono-italic {
+.%s .text-mono-italic {
-	font-family: "font-mono-italic";
+	font-family: "%s-font-mono-italic";
 }
 @font-face {
-	font-family: font-mono-italic;
+	font-family: %s-font-mono-italic;
-	src: url("%s");
-}`,
-			d2fonts.FontEncodings[d2fonts.SourceCodePro.Font(0, d2fonts.FONT_STYLE_ITALIC)],
-		),
-	)
-
-	appendOnTrigger(
-		buf,
-		source,
-		[]string{
-			`class="text-mono-bold"`,
-		},
-		fmt.Sprintf(`
-.text-mono-bold {
-	font-family: "font-mono-bold";
-}
-@font-face {
-	font-family: font-mono-bold;
-	src: url("%s");
-}`,
-			d2fonts.FontEncodings[d2fonts.SourceCodePro.Font(0, d2fonts.FONT_STYLE_BOLD)],
-		),
-	)
-
-	appendOnTrigger(
-		buf,
-		source,
-		[]string{
-			`class="text-mono-italic"`,
-		},
-		fmt.Sprintf(`
-.text-mono-italic {
-	font-family: "font-mono-italic";
-}
-@font-face {
-	font-family: font-mono-italic;
 	src: url("%s");
 }`,
+			diagramHash,
+			diagramHash,
+			diagramHash,
 			d2fonts.FontEncodings[d2fonts.SourceCodePro.Font(0, d2fonts.FONT_STYLE_ITALIC)],
 		),
 	)
@@ -1644,10 +1656,12 @@ func Render(diagram *d2target.Diagram, opts *RenderOpts) ([]byte, error) {
 
 	// Mask URLs are global. So when multiple SVGs attach to a DOM, they share
 	// the same namespace for mask URLs.
-	labelMaskID, err := diagram.HashID()
+	diagramHash, err := diagram.HashID()
 	if err != nil {
 		return nil, err
 	}
+	// CSS names can't start with numbers, so prepend a little something
+	diagramHash = "d2-" + diagramHash
 
 	// SVG has no notion of z-index. The z-index is effectively the order it's drawn.
 	// So draw from the least nested to most nested
@@ -1667,7 +1681,7 @@ func Render(diagram *d2target.Diagram, opts *RenderOpts) ([]byte, error) {
 	markers := map[string]struct{}{}
 	for _, obj := range allObjects {
 		if c, is := obj.(d2target.Connection); is {
-			labelMask, err := drawConnection(buf, labelMaskID, c, markers, idToShape, sketchRunner)
+			labelMask, err := drawConnection(buf, diagramHash, c, markers, idToShape, sketchRunner)
 			if err != nil {
 				return nil, err
 			}
@@ -1675,7 +1689,7 @@ func Render(diagram *d2target.Diagram, opts *RenderOpts) ([]byte, error) {
 				labelMasks = append(labelMasks, labelMask)
 			}
 		} else if s, is := obj.(d2target.Shape); is {
-			labelMask, err := drawShape(buf, s, sketchRunner)
+			labelMask, err := drawShape(buf, diagramHash, s, sketchRunner)
 			if err != nil {
 				return nil, err
 			} else if labelMask != "" {
@@ -1690,7 +1704,7 @@ func Render(diagram *d2target.Diagram, opts *RenderOpts) ([]byte, error) {
 	left, top, w, h := dimensions(diagram, pad)
 	fmt.Fprint(buf, strings.Join([]string{
 		fmt.Sprintf(`<mask id="%s" maskUnits="userSpaceOnUse" x="%d" y="%d" width="%d" height="%d">`,
-			labelMaskID, left, top, w, h,
+			diagramHash, left, top, w, h,
 		),
 		fmt.Sprintf(`<rect x="%d" y="%d" width="%d" height="%d" fill="white"></rect>`,
 			left, top, w, h,
@@ -1701,8 +1715,8 @@ func Render(diagram *d2target.Diagram, opts *RenderOpts) ([]byte, error) {
 
 	// generate style elements that will be appended to the SVG tag
 	upperBuf := &bytes.Buffer{}
-	embedFonts(upperBuf, buf.String(), diagram.FontFamily) // embedFonts *must* run before `d2sketch.DefineFillPatterns`, but after all elements are appended to `buf`
+	embedFonts(upperBuf, diagramHash, buf.String(), diagram.FontFamily) // embedFonts *must* run before `d2sketch.DefineFillPatterns`, but after all elements are appended to `buf`
-	themeStylesheet, err := themeCSS(themeID, darkThemeID)
+	themeStylesheet, err := themeCSS(diagramHash, themeID, darkThemeID)
 	if err != nil {
 		return nil, err
 	}
@@ -1716,8 +1730,14 @@ func Render(diagram *d2target.Diagram, opts *RenderOpts) ([]byte, error) {
 		}
 	}
 	if hasMarkdown {
-		fmt.Fprintf(upperBuf, `<style type="text/css">%s</style>`, mdCSS)
+		css := mdCSS
+		css = strings.ReplaceAll(css, "font-italic", fmt.Sprintf("%s-font-italic", diagramHash))
+		css = strings.ReplaceAll(css, "font-bold", fmt.Sprintf("%s-font-bold", diagramHash))
+		css = strings.ReplaceAll(css, "font-mono", fmt.Sprintf("%s-font-mono", diagramHash))
+		css = strings.ReplaceAll(css, "font-regular", fmt.Sprintf("%s-font-regular", diagramHash))
+		fmt.Fprintf(upperBuf, `<style type="text/css">%s</style>`, css)
 	}
+
 	if sketchRunner != nil {
 		d2sketch.DefineFillPatterns(upperBuf)
 	}
@@ -1735,6 +1755,7 @@ func Render(diagram *d2target.Diagram, opts *RenderOpts) ([]byte, error) {
 	backgroundEl.Height = float64(h)
 	backgroundEl.Fill = diagram.Root.Fill
 	backgroundEl.Stroke = diagram.Root.Stroke
+	backgroundEl.FillPattern = diagram.Root.FillPattern
 	backgroundEl.Rx = diagram.Root.BorderRadius
 	if diagram.Root.StrokeDash != 0 {
 		dashSize, gapSize := svg.GetStrokeDashAttributes(float64(diagram.Root.StrokeWidth), diagram.Root.StrokeDash)
@@ -1773,21 +1794,52 @@ func Render(diagram *d2target.Diagram, opts *RenderOpts) ([]byte, error) {
 		h += int(math.Ceil(float64(diagram.Root.StrokeWidth)/2.) * 2.)
 	}
 
+	bufStr := buf.String()
+	patternDefs := ""
+	for _, pattern := range d2graph.FillPatterns {
+		if strings.Contains(bufStr, fmt.Sprintf("%s-overlay", pattern)) || diagram.Root.FillPattern != "" {
+			if patternDefs == "" {
+				fmt.Fprint(upperBuf, `<style type="text/css"><![CDATA[`)
+			}
+			switch pattern {
+			case "dots":
+				patternDefs += dots
+			case "lines":
+				patternDefs += lines
+			case "grain":
+				patternDefs += grain
+			}
+			fmt.Fprint(upperBuf, fmt.Sprintf(`
+.%s-overlay {
+	fill: url(#%s);
+	mix-blend-mode: multiply;
+}`, pattern, pattern))
+		}
+	}
+	if patternDefs != "" {
+		fmt.Fprint(upperBuf, `]]></style>`)
+		fmt.Fprint(upperBuf, "<defs>")
+		fmt.Fprintf(upperBuf, patternDefs)
+		fmt.Fprint(upperBuf, "</defs>")
+	}
+
 	var dimensions string
 	if setDimensions {
 		dimensions = fmt.Sprintf(` width="%d" height="%d"`, w, h)
 	}
 
-	fitToScreenWrapper := fmt.Sprintf(`<svg %s preserveAspectRatio="xMinYMin meet" viewBox="0 0 %d %d"%s>`,
+	fitToScreenWrapper := fmt.Sprintf(`<svg %s d2Version="%s" preserveAspectRatio="xMinYMin meet" viewBox="0 0 %d %d"%s>`,
 		`xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"`,
+		version.Version,
 		w, h,
 		dimensions,
 	)
 
 	// TODO minify
-	docRendered := fmt.Sprintf(`%s%s<svg id="d2-svg" width="%d" height="%d" viewBox="%d %d %d %d">%s%s%s%s</svg></svg>`,
+	docRendered := fmt.Sprintf(`%s%s<svg id="d2-svg" class="%s" width="%d" height="%d" viewBox="%d %d %d %d">%s%s%s%s</svg></svg>`,
 		`<?xml version="1.0" encoding="utf-8"?>`,
 		fitToScreenWrapper,
+		diagramHash,
 		w, h, left, top, w, h,
 		doubleBorderElStr,
 		backgroundEl.Render(),
@@ -1798,14 +1850,14 @@ func Render(diagram *d2target.Diagram, opts *RenderOpts) ([]byte, error) {
 }
 
 // TODO include only colors that are being used to reduce size
-func themeCSS(themeID int64, darkThemeID *int64) (stylesheet string, err error) {
+func themeCSS(diagramHash string, themeID int64, darkThemeID *int64) (stylesheet string, err error) {
-	out, err := singleThemeRulesets(themeID)
+	out, err := singleThemeRulesets(diagramHash, themeID)
 	if err != nil {
 		return "", err
 	}
 
 	if darkThemeID != nil {
-		darkOut, err := singleThemeRulesets(*darkThemeID)
+		darkOut, err := singleThemeRulesets(diagramHash, *darkThemeID)
 		if err != nil {
 			return "", err
 		}
@@ -1815,30 +1867,66 @@ func themeCSS(themeID int64, darkThemeID *int64) (stylesheet string, err error)
 	return out, nil
 }
 
-func singleThemeRulesets(themeID int64) (rulesets string, err error) {
+func singleThemeRulesets(diagramHash string, themeID int64) (rulesets string, err error) {
 	out := ""
 	theme := d2themescatalog.Find(themeID)
 
 	// Global theme colors
 	for _, property := range []string{"fill", "stroke", "background-color", "color"} {
-		out += fmt.Sprintf(".%s-N1{%s:%s;}.%s-N2{%s:%s;}.%s-N3{%s:%s;}.%s-N4{%s:%s;}.%s-N5{%s:%s;}.%s-N6{%s:%s;}.%s-N7{%s:%s;}.%s-B1{%s:%s;}.%s-B2{%s:%s;}.%s-B3{%s:%s;}.%s-B4{%s:%s;}.%s-B5{%s:%s;}.%s-B6{%s:%s;}.%s-AA2{%s:%s;}.%s-AA4{%s:%s;}.%s-AA5{%s:%s;}.%s-AB4{%s:%s;}.%s-AB5{%s:%s;}",
+		out += fmt.Sprintf(`
+		.%s .%s-N1{%s:%s;}
+		.%s .%s-N2{%s:%s;}
+		.%s .%s-N3{%s:%s;}
+		.%s .%s-N4{%s:%s;}
+		.%s .%s-N5{%s:%s;}
+		.%s .%s-N6{%s:%s;}
+		.%s .%s-N7{%s:%s;}
+		.%s .%s-B1{%s:%s;}
+		.%s .%s-B2{%s:%s;}
+		.%s .%s-B3{%s:%s;}
+		.%s .%s-B4{%s:%s;}
+		.%s .%s-B5{%s:%s;}
+		.%s .%s-B6{%s:%s;}
+		.%s .%s-AA2{%s:%s;}
+		.%s .%s-AA4{%s:%s;}
+		.%s .%s-AA5{%s:%s;}
+		.%s .%s-AB4{%s:%s;}
+		.%s .%s-AB5{%s:%s;}`,
+			diagramHash,
 			property, property, theme.Colors.Neutrals.N1,
+			diagramHash,
 			property, property, theme.Colors.Neutrals.N2,
+			diagramHash,
 			property, property, theme.Colors.Neutrals.N3,
+			diagramHash,
 			property, property, theme.Colors.Neutrals.N4,
+			diagramHash,
 			property, property, theme.Colors.Neutrals.N5,
+			diagramHash,
 			property, property, theme.Colors.Neutrals.N6,
+			diagramHash,
 			property, property, theme.Colors.Neutrals.N7,
+			diagramHash,
 			property, property, theme.Colors.B1,
+			diagramHash,
 			property, property, theme.Colors.B2,
+			diagramHash,
 			property, property, theme.Colors.B3,
+			diagramHash,
 			property, property, theme.Colors.B4,
+			diagramHash,
 			property, property, theme.Colors.B5,
+			diagramHash,
 			property, property, theme.Colors.B6,
+			diagramHash,
 			property, property, theme.Colors.AA2,
+			diagramHash,
 			property, property, theme.Colors.AA4,
+			diagramHash,
 			property, property, theme.Colors.AA5,
+			diagramHash,
 			property, property, theme.Colors.AB4,
+			diagramHash,
 			property, property, theme.Colors.AB5,
 		)
 	}

d2renderers/d2svg/dark_theme/dark_theme_test.go

@@ -430,6 +430,7 @@ func run(t *testing.T, tc testCase) {
 		Ruler:      ruler,
 		Layout:     d2dagrelayout.DefaultLayout,
 		FontFamily: go2.Pointer(d2fonts.HandDrawn),
+		ThemeID:    200,
 	})
 	if !tassert.Nil(t, err) {
 		return

d2renderers/d2svg/dots.txt

@@ -0,0 +1,29 @@
+<pattern id="dots" x="0" y="0" width="15" height="15" patternUnits="userSpaceOnUse">
+<g style="mix-blend-mode:multiply" opacity="0.1">
+<rect x="2" y="2" width="1" height="1" fill="#0A0F25"/>
+</g>
+<g style="mix-blend-mode:multiply" opacity="0.1">
+<rect x="12" y="2" width="1" height="1" fill="#0A0F25"/>
+</g>
+<g style="mix-blend-mode:multiply" opacity="0.1">
+<rect x="12" y="12" width="1" height="1" fill="#0A0F25"/>
+</g>
+<g style="mix-blend-mode:multiply" opacity="0.1">
+<rect x="2" y="12" width="1" height="1" fill="#0A0F25"/>
+</g>
+<g style="mix-blend-mode:multiply" opacity="0.1">
+<rect x="2" y="7" width="1" height="1" fill="#0A0F25"/>
+</g>
+<g style="mix-blend-mode:multiply" opacity="0.1">
+<rect x="12" y="7" width="1" height="1" fill="#0A0F25"/>
+</g>
+<g style="mix-blend-mode:multiply" opacity="0.1">
+<rect x="7" y="2" width="1" height="1" fill="#0A0F25"/>
+</g>
+<g style="mix-blend-mode:multiply" opacity="0.1">
+<rect x="7" y="12" width="1" height="1" fill="#0A0F25"/>
+</g>
+<g style="mix-blend-mode:multiply" opacity="0.1">
+<rect x="7" y="7" width="1" height="1" fill="#0A0F25"/>
+</g>
+</pattern>

d2renderers/d2svg/lines.txt

@@ -0,0 +1,13 @@
+<pattern id="lines" x="0" y="0" width="15" height="15" patternUnits="userSpaceOnUse">
+<g style="mix-blend-mode:multiply">
+<g style="mix-blend-mode:multiply" opacity="0.05">
+<rect y="2" width="15" height="1" fill="#0A0F25"/>
+</g>
+<g style="mix-blend-mode:multiply" opacity="0.05">
+<rect y="7" width="15" height="1" fill="#0A0F25"/>
+</g>
+<g style="mix-blend-mode:multiply" opacity="0.05">
+<rect y="12" width="15" height="1" fill="#0A0F25"/>
+</g>
+</g>
+</pattern>

d2renderers/d2svg/table.go

@@ -12,12 +12,44 @@ import (
 	"oss.terrastruct.com/util-go/go2"
 )
 
-func tableHeader(shape d2target.Shape, box *geo.Box, text string, textWidth, textHeight, fontSize float64) string {
+// this func helps define a clipPath for shape class and sql_table to draw border-radius
+func clipPathForBorderRadius(diagramHash string, shape d2target.Shape) string {
+	box := geo.NewBox(
+		geo.NewPoint(float64(shape.Pos.X), float64(shape.Pos.Y)),
+		float64(shape.Width),
+		float64(shape.Height),
+	)
+	topX, topY := box.TopLeft.X+box.Width, box.TopLeft.Y
+
+	out := fmt.Sprintf(`<clipPath id="%v-%v">`, diagramHash, shape.ID)
+	out += fmt.Sprintf(`<path d="M %f %f L %f %f S %f %f %f %f `, box.TopLeft.X, box.TopLeft.Y+float64(shape.BorderRadius), box.TopLeft.X, box.TopLeft.Y+float64(shape.BorderRadius), box.TopLeft.X, box.TopLeft.Y, box.TopLeft.X+float64(shape.BorderRadius), box.TopLeft.Y)
+	out += fmt.Sprintf(`L %f %f L %f %f `, box.TopLeft.X+box.Width-float64(shape.BorderRadius), box.TopLeft.Y, topX-float64(shape.BorderRadius), topY)
+
+	out += fmt.Sprintf(`S %f %f %f %f `, topX, topY, topX, topY+float64(shape.BorderRadius))
+	out += fmt.Sprintf(`L %f %f `, topX, topY+box.Height-float64(shape.BorderRadius))
+
+	if len(shape.Columns) != 0 {
+		out += fmt.Sprintf(`L %f %f L %f %f`, topX, topY+box.Height, box.TopLeft.X, box.TopLeft.Y+box.Height)
+	} else {
+		out += fmt.Sprintf(`S %f % f %f %f `, topX, topY+box.Height, topX-float64(shape.BorderRadius), topY+box.Height)
+		out += fmt.Sprintf(`L %f %f `, box.TopLeft.X+float64(shape.BorderRadius), box.TopLeft.Y+box.Height)
+		out += fmt.Sprintf(`S %f %f %f %f`, box.TopLeft.X, box.TopLeft.Y+box.Height, box.TopLeft.X, box.TopLeft.Y+box.Height-float64(shape.BorderRadius))
+		out += fmt.Sprintf(`L %f %f`, box.TopLeft.X, box.TopLeft.Y+float64(shape.BorderRadius))
+	}
+	out += fmt.Sprintf(`Z %f %f" `, box.TopLeft.X, box.TopLeft.Y)
+	return out + `fill="none" /> </clipPath>`
+}
+
+func tableHeader(diagramHash string, shape d2target.Shape, box *geo.Box, text string, textWidth, textHeight, fontSize float64) string {
 	rectEl := d2themes.NewThemableElement("rect")
 	rectEl.X, rectEl.Y = box.TopLeft.X, box.TopLeft.Y
 	rectEl.Width, rectEl.Height = box.Width, box.Height
 	rectEl.Fill = shape.Fill
+	rectEl.FillPattern = shape.FillPattern
 	rectEl.ClassName = "class_header"
+	if shape.BorderRadius != 0 {
+		rectEl.ClipPath = fmt.Sprintf("%v-%v", diagramHash, shape.ID)
+	}
 	str := rectEl.Render()
 
 	if text != "" {
@@ -82,15 +114,20 @@ func tableRow(shape d2target.Shape, box *geo.Box, nameText, typeText, constraint
 	return out
 }
 
-func drawTable(writer io.Writer, targetShape d2target.Shape) {
+func drawTable(writer io.Writer, diagramHash string, targetShape d2target.Shape) {
 	rectEl := d2themes.NewThemableElement("rect")
 	rectEl.X = float64(targetShape.Pos.X)
 	rectEl.Y = float64(targetShape.Pos.Y)
 	rectEl.Width = float64(targetShape.Width)
 	rectEl.Height = float64(targetShape.Height)
 	rectEl.Fill, rectEl.Stroke = d2themes.ShapeTheme(targetShape)
+	rectEl.FillPattern = targetShape.FillPattern
 	rectEl.ClassName = "shape"
 	rectEl.Style = targetShape.CSSStyle()
+	if targetShape.BorderRadius != 0 {
+		rectEl.Rx = float64(targetShape.BorderRadius)
+		rectEl.Ry = float64(targetShape.BorderRadius)
+	}
 	fmt.Fprint(writer, rectEl.Render())
 
 	box := geo.NewBox(
@@ -102,7 +139,7 @@ func drawTable(writer io.Writer, targetShape d2target.Shape) {
 	headerBox := geo.NewBox(box.TopLeft, box.Width, rowHeight)
 
 	fmt.Fprint(writer,
-		tableHeader(targetShape, headerBox, targetShape.Label,
+		tableHeader(diagramHash, targetShape, headerBox, targetShape.Label,
 			float64(targetShape.LabelWidth), float64(targetShape.LabelHeight), float64(targetShape.FontSize)),
 	)
 
@@ -113,15 +150,20 @@ func drawTable(writer io.Writer, targetShape d2target.Shape) {
 
 	rowBox := geo.NewBox(box.TopLeft.Copy(), box.Width, rowHeight)
 	rowBox.TopLeft.Y += headerBox.Height
-	for _, f := range targetShape.Columns {
+	for idx, f := range targetShape.Columns {
 		fmt.Fprint(writer,
 			tableRow(targetShape, rowBox, f.Name.Label, f.Type.Label, f.ConstraintAbbr(), float64(targetShape.FontSize), float64(longestNameWidth)),
 		)
 		rowBox.TopLeft.Y += rowHeight
 
 		lineEl := d2themes.NewThemableElement("line")
+		if idx == len(targetShape.Columns)-1 && targetShape.BorderRadius != 0 {
+			lineEl.X1, lineEl.Y1 = rowBox.TopLeft.X+float64(targetShape.BorderRadius), rowBox.TopLeft.Y
+			lineEl.X2, lineEl.Y2 = rowBox.TopLeft.X+rowBox.Width-float64(targetShape.BorderRadius), rowBox.TopLeft.Y
+		} else {
 			lineEl.X1, lineEl.Y1 = rowBox.TopLeft.X, rowBox.TopLeft.Y
 			lineEl.X2, lineEl.Y2 = rowBox.TopLeft.X+rowBox.Width, rowBox.TopLeft.Y
+		}
 		lineEl.Stroke = targetShape.Fill
 		lineEl.Style = "stroke-width:2"
 		fmt.Fprint(writer, lineEl.Render())

d2target/d2target.go

@@ -177,6 +177,7 @@ type Shape struct {
 	BorderRadius float64 `json:"borderRadius"`
 
 	Fill        string `json:"fill"`
+	FillPattern string `json:"fillPattern,omitempty"`
 	Stroke      string `json:"stroke"`
 
 	Shadow       bool `json:"shadow"`

d2themes/README.md

@@ -18,14 +18,10 @@ Run `d2 --help` or `man d2` for more.
 
 # Color coding guide
 
+To distinguish container nesting, objects get progressively lighter the more nested it is.
+
 <img src="../docs/assets/themes_coding.png" />
 
 # Color coding example
 
 <img src="../docs/assets/themes_coding_example.png" />
-
-# Container gradients
-
-To distinguish container nesting, objects get progressively lighter the more nested it is.
-
-<img src="../docs/assets/themes_gradients.png" width="300px" />

d2themes/d2themes.go

@@ -8,6 +8,16 @@ type Theme struct {
 	ID     int64        `json:"id"`
 	Name   string       `json:"name"`
 	Colors ColorPalette `json:"colors"`
+
+	SpecialRules SpecialRules `json:"specialRules,omitempty"`
+}
+
+type SpecialRules struct {
+	Mono                       bool `json:"mono"`
+	NoCornerRadius             bool `json:"noCornerRadius"`
+	OuterContainerDoubleBorder bool `json:"outerContainerDoubleBorder"`
+	ContainerDots              bool `json:"containerDots"`
+	CapsLock                   bool `json:"capsLock"`
 }
 
 func (t *Theme) IsDark() bool {

d2themes/d2themescatalog/catalog.go

@@ -22,6 +22,8 @@ var LightCatalog = []d2themes.Theme{
 	EarthTones,
 	EvergladeGreen,
 	ButteredToast,
+	Terminal,
+	TerminalGrayscale,
 }
 
 var DarkCatalog = []d2themes.Theme{

d2themes/d2themescatalog/terminal.go

@@ -0,0 +1,42 @@
+package d2themescatalog
+
+import "oss.terrastruct.com/d2/d2themes"
+
+var Terminal = d2themes.Theme{
+	ID:   300,
+	Name: "Terminal",
+	Colors: d2themes.ColorPalette{
+		Neutrals: TerminalNeutral,
+
+		B1: "#000410",
+		B2: "#0000E4",
+		B3: "#5AA4DC",
+		B4: "#E7E9EE",
+		B5: "#F5F6F9",
+		B6: "#FFFFFF",
+
+		AA2: "#008566",
+		AA4: "#45BBA5",
+		AA5: "#7ACCBD",
+
+		AB4: "#F1C759",
+		AB5: "#F9E088",
+	},
+	SpecialRules: d2themes.SpecialRules{
+		Mono:                       true,
+		NoCornerRadius:             true,
+		OuterContainerDoubleBorder: true,
+		ContainerDots:              true,
+		CapsLock:                   true,
+	},
+}
+
+var TerminalNeutral = d2themes.Neutral{
+	N1: "#000410",
+	N2: "#0000B8",
+	N3: "#9499AB",
+	N4: "#CFD2DD",
+	N5: "#C3DEF3",
+	N6: "#EEF1F8",
+	N7: "#FFFFFF",
+}

d2themes/d2themescatalog/terminal_grayscale.go

@@ -0,0 +1,42 @@
+package d2themescatalog
+
+import "oss.terrastruct.com/d2/d2themes"
+
+var TerminalGrayscale = d2themes.Theme{
+	ID:   301,
+	Name: "Terminal Grayscale",
+	Colors: d2themes.ColorPalette{
+		Neutrals: TerminalGrayscaleNeutral,
+
+		B1: "#000410",
+		B2: "#000410",
+		B3: "#FFFFFF",
+		B4: "#E7E9EE",
+		B5: "#F5F6F9",
+		B6: "#FFFFFF",
+
+		AA2: "#6D7284",
+		AA4: "#F5F6F9",
+		AA5: "#FFFFFF",
+
+		AB4: "#F5F6F9",
+		AB5: "#FFFFFF",
+	},
+	SpecialRules: d2themes.SpecialRules{
+		Mono:                       true,
+		NoCornerRadius:             true,
+		OuterContainerDoubleBorder: true,
+		ContainerDots:              true,
+		CapsLock:                   true,
+	},
+}
+
+var TerminalGrayscaleNeutral = d2themes.Neutral{
+	N1: "#000410",
+	N2: "#000410",
+	N3: "#9499AB",
+	N4: "#FFFFFF",
+	N5: "#FFFFFF",
+	N6: "#EEF1F8",
+	N7: "#FFFFFF",
+}

d2themes/element.go

@@ -46,6 +46,9 @@ type ThemableElement struct {
 	Attributes string
 
 	Content  string
+	ClipPath string
+
+	FillPattern string
 }
 
 func NewThemableElement(tag string) *ThemableElement {
@@ -84,6 +87,8 @@ func NewThemableElement(tag string) *ThemableElement {
 		"",
 		"",
 		"",
+		"",
+		"",
 	}
 }
 
@@ -201,10 +206,26 @@ func (el *ThemableElement) Render() string {
 		out += fmt.Sprintf(` %s`, el.Attributes)
 	}
 
+	if len(el.ClipPath) > 0 {
+		out += fmt.Sprintf(` clip-path="url(#%s)"`, el.ClipPath)
+	}
+
 	if len(el.Content) > 0 {
 		return fmt.Sprintf("%s>%s</%s>", out, el.Content, el.tag)
 	}
-	return out + " />"
+
+	out += " />"
+	if el.FillPattern != "" {
+		patternEl := el.Copy()
+		patternEl.Fill = ""
+		patternEl.Stroke = ""
+		patternEl.BackgroundColor = ""
+		patternEl.Color = ""
+		patternEl.ClassName = fmt.Sprintf("%s-overlay", el.FillPattern)
+		patternEl.FillPattern = ""
+		out += patternEl.Render()
+	}
+	return out
 }
 
 func calculateAxisRadius(borderRadius float64, sideLength float64) float64 {

d2themes/pattern_overlay.go

@@ -0,0 +1,24 @@
+package d2themes
+
+import (
+	"fmt"
+)
+
+type PatternOverlay struct {
+	el      *ThemableElement
+	pattern string
+}
+
+func NewPatternOverlay(el *ThemableElement, pattern string) *PatternOverlay {
+	return &PatternOverlay{
+		el,
+		pattern,
+	}
+}
+
+func (o *PatternOverlay) Render() (string, error) {
+	el := o.el.Copy()
+	el.Fill = ""
+	el.ClassName = fmt.Sprintf("%s-overlay", o.pattern)
+	return el.Render(), nil
+}

d2themes/sketch_overlay.go

@@ -18,6 +18,7 @@ func NewThemableSketchOverlay(el *ThemableElement, fill string) *ThemableSketchO
 	}
 }
 
+// TODO we can just call el.Copy() to prevent that
 // WARNING: Do not reuse the element afterwards as this function changes the Class propery
 func (o *ThemableSketchOverlay) Render() (string, error) {
 	if color.IsThemeColor(o.fill) {

docs/CONTRIBUTING.md

@@ -66,8 +66,7 @@ git submodule update --recursive
 
 ## Logistics
 
-- Use Go 1.18. Go 1.19's autofmt inexplicably strips spacing from ASCII art in comments.
+- Use Go 1.20.
-  We're working on it.
 - Please sign your commits
   ([https://github.com/terrastruct/d2/pull/557#issuecomment-1367468730](https://github.com/terrastruct/d2/pull/557#issuecomment-1367468730)).
 - D2 uses Issues as TODOs. No auto-closing on staleness.

docs/INSTALL.md

@@ -158,7 +158,7 @@ You can always install from source:
 go install oss.terrastruct.com/d2@latest
 ```
 
-You need at least Go v1.18
+You need at least Go v1.20
 
 ### Source Release
 
@@ -175,7 +175,7 @@ fonts and icons. Furthermore, when installing a non versioned commit, installing
 will ensure that `d2 --version` works correctly by embedding the commit hash into the `d2`
 binary.
 
-Remember, you need at least Go v1.18
+Remember, you need at least Go v1.20
 
 ## Windows
 

docs/examples/lib/3-lowlevel/lowlevel.go

@@ -17,6 +17,7 @@ import (
 // Remember to add if err != nil checks in production.
 func main() {
 	graph, _ := d2compiler.Compile("", strings.NewReader("x -> y"), nil)
+	graph.ApplyTheme(d2themescatalog.NeutralDefault.ID)
 	ruler, _ := textmeasure.NewRuler()
 	_ = graph.SetDimensions(nil, ruler, nil)
 	_ = d2dagrelayout.Layout(context.Background(), graph, nil)