diff --git a/d2layouts/d2sequence/sequence_diagram.go b/d2layouts/d2sequence/sequence_diagram.go
index f42c68eed..9d70eb837 100644
--- a/d2layouts/d2sequence/sequence_diagram.go
+++ b/d2layouts/d2sequence/sequence_diagram.go
@@ -224,6 +224,7 @@ func (sd *sequenceDiagram) placeSpans() {
 // routeMessages routes horizontal edges (messages) from Src to Dst
 func (sd *sequenceDiagram) routeMessages() {
 	for rank, message := range sd.messages {
+		message.ZIndex = 2
 		isLeftToRight := message.Src.TopLeft.X < message.Dst.TopLeft.X
 
 		// finds the proper anchor point based on the message direction
diff --git a/e2etests/testdata/stable/sequence_diagram_nested_span/dagre/board.exp.json b/e2etests/testdata/stable/sequence_diagram_nested_span/dagre/board.exp.json
index 61003c046..f91a979ec 100644
--- a/e2etests/testdata/stable/sequence_diagram_nested_span/dagre/board.exp.json
+++ b/e2etests/testdata/stable/sequence_diagram_nested_span/dagre/board.exp.json
@@ -920,7 +920,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(itemResponse.a -> item.a.b)[0]",
@@ -959,7 +959,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(item.a.b -> essayRubric.a.b.c)[0]",
@@ -998,7 +998,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(essayRubric.a.b.c -> concept.a.b.c.d)[0]",
@@ -1037,7 +1037,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(item.a -> essayRubric.a.b)[0]",
@@ -1076,7 +1076,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(concept.a.b.c.d -> itemOutcome.a.b.c.d.e)[0]",
@@ -1115,7 +1115,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.abc -> item.a)[0]",
@@ -1154,7 +1154,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(itemOutcome.a.b.c.d.e -> scorer)[0]",
@@ -1193,7 +1193,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer -> itemResponse.c)[0]",
@@ -1232,7 +1232,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer -- )[0]",
diff --git a/e2etests/testdata/stable/sequence_diagram_nested_span/dagre/sketch.exp.svg b/e2etests/testdata/stable/sequence_diagram_nested_span/dagre/sketch.exp.svg
index 6c954c961..a4cc51663 100644
--- a/e2etests/testdata/stable/sequence_diagram_nested_span/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/sequence_diagram_nested_span/dagre/sketch.exp.svg
@@ -14,7 +14,7 @@ width="2516" height="1841" viewBox="-100 -50 2516 1841"><style type="text/css">
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diff --git a/e2etests/testdata/stable/sequence_diagram_simple/dagre/board.exp.json b/e2etests/testdata/stable/sequence_diagram_simple/dagre/board.exp.json
index 4fa724c72..1fc4cf4c9 100644
--- a/e2etests/testdata/stable/sequence_diagram_simple/dagre/board.exp.json
+++ b/e2etests/testdata/stable/sequence_diagram_simple/dagre/board.exp.json
@@ -235,7 +235,7 @@
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diff --git a/e2etests/testdata/stable/sequence_diagram_simple/dagre/sketch.exp.svg b/e2etests/testdata/stable/sequence_diagram_simple/dagre/sketch.exp.svg
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--- a/e2etests/testdata/stable/sequence_diagram_simple/dagre/sketch.exp.svg
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bob)[0]"><marker id="mk-3990223579" markerWidth="10.000000" markerHeight="12.000000" refX="7.000000" refY="6.000000" viewBox="0.000000 0.000000 10.000000 12.000000" orient="auto" markerUnits="userSpaceOnUse"> <polygon class="connection" fill="#0D32B2" stroke-width="2" points="0.000000,0.000000 10.000000,6.000000 0.000000,12.000000" /> </marker><path d="M 88.500000 438.000000 L 535.500000 438.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="313.500000" y="427.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">Authentication Request</text></g><g id="(bob -&gt; service)[0]"><path d="M 554.500000 588.000000 L 1928.000000 588.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="1241.500000" y="577.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">make request for something that is quite far away and requires a really long label to take all the space between the objects</text></g><g id="(service -&gt; db)[0]"><path d="M 1930.000000 738.000000 L 1000.000000 738.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="1464.500000" y="727.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">validate credentials</text></g><g id="(db -&gt; service)[0]"><path d="M 998.000000 888.000000 L 1928.000000 888.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:8.000000,7.892511;" marker-end="url(#mk-3990223579)" /></g><g id="(service -&gt; bob)[0]"><path d="M 1930.000000 1038.000000 L 556.500000 1038.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:8.000000,7.892511;" marker-end="url(#mk-3990223579)" /></g><g id="(bob -&gt; alice)[0]"><path d="M 537.500000 1188.000000 L 90.500000 1188.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="314.000000" y="1177.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">Authentication Response</text></g><g id="(alice -&gt; bob)[1]"><path d="M 88.500000 1338.000000 L 535.500000 1338.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="314.000000" y="1327.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">Another authentication Request</text></g><g id="(bob -&gt; queue)[0]"><path d="M 554.500000 1488.000000 L 1435.500000 1488.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="995.500000" y="1477.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">do it later</text></g><g id="(queue -&gt; bob)[0]"><marker id="mk-1225746125" markerWidth="25.000000" markerHeight="30.000000" refX="17.500000" refY="15.000000" viewBox="0.000000 0.000000 25.000000 30.000000" orient="auto" markerUnits="userSpaceOnUse"> <polygon class="connection" fill="green" stroke-width="5" points="0.000000,0.000000 25.000000,15.000000 0.000000,30.000000" /> </marker><path d="M 1436.000000 1638.000000 L 561.000000 1638.000000" class="connection" style="fill:none;stroke:green;opacity:1.000000;stroke-width:5;stroke-dasharray:15.000000,14.106102;" marker-end="url(#mk-1225746125)" /><text class="text-italic" x="995.000000" y="1626.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">stored</text></g><g id="(bob -&gt; alice)[1]"><path d="M 537.500000 1788.000000 L 90.500000 1788.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="313.500000" y="1777.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">Another authentication Response</text></g><style type="text/css"><![CDATA[
 .text-bold {
 	font-family: "font-bold";
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diff --git a/e2etests/testdata/stable/sequence_diagram_simple/elk/board.exp.json b/e2etests/testdata/stable/sequence_diagram_simple/elk/board.exp.json
index 4fa724c72..1fc4cf4c9 100644
--- a/e2etests/testdata/stable/sequence_diagram_simple/elk/board.exp.json
+++ b/e2etests/testdata/stable/sequence_diagram_simple/elk/board.exp.json
@@ -235,7 +235,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(bob -> service)[0]",
@@ -274,7 +274,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(service -> db)[0]",
@@ -313,7 +313,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
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     {
       "id": "(db -> service)[0]",
@@ -352,7 +352,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(service -> bob)[0]",
@@ -391,7 +391,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(bob -> alice)[0]",
@@ -430,7 +430,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(alice -> bob)[1]",
@@ -469,7 +469,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(bob -> queue)[0]",
@@ -508,7 +508,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(queue -> bob)[0]",
@@ -547,7 +547,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(bob -> alice)[1]",
@@ -586,7 +586,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(alice -- )[0]",
diff --git a/e2etests/testdata/stable/sequence_diagram_simple/elk/sketch.exp.svg b/e2etests/testdata/stable/sequence_diagram_simple/elk/sketch.exp.svg
index a6b609da5..c51dfc31d 100644
--- a/e2etests/testdata/stable/sequence_diagram_simple/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/sequence_diagram_simple/elk/sketch.exp.svg
@@ -14,7 +14,7 @@ width="2238" height="2088" viewBox="-100 -50 2238 2088"><style type="text/css">
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-</style><g id="alice"><g class="shape" ><path d="M 163 288 H 0 V 285.7545 C 0 258.8088 17.899 234.5168 46.06 222.8811 C 30.5476 213.491 21.2401 198.1809 21.2401 181.4419 C 21.2401 153.0672 48.2079 130 81.3807 130 C 114.5535 130 141.5213 153.0672 141.5213 181.4419 C 141.5213 198.1809 132.4525 213.2869 116.7014 223.0853 C 144.8625 234.721 162.7614 259.0129 162.7614 285.9587 V 288 H 163 Z" style="fill:#E3E9FD;stroke:red;opacity:1.000000;stroke-width:2;"/></g><text class="text-bold" x="81.500000" y="196.000000" style="text-anchor:middle;font-size:16px;fill:#0A0F25"><tspan x="81.500000" dy="0.000000">Alice</tspan><tspan x="81.500000" dy="19.333333">line</tspan><tspan x="81.500000" dy="19.333333">breaker</tspan></text></g><g id="bob"><g class="shape" ><path d="M 612 288 H 480 V 286.2093 C 480 264.7209 494.4949 245.3488 517.3001 236.0698 C 504.7379 228.5814 497.2006 216.3721 497.2006 203.0233 C 497.2006 180.3953 519.0395 162 545.9034 162 C 572.7672 162 594.6062 180.3953 594.6062 203.0233 C 594.6062 216.3721 587.2621 228.4186 574.5066 236.2326 C 597.3119 245.5117 611.8067 264.8838 611.8067 286.3721 V 288 H 612 Z" style="fill:#E3E9FD;stroke:#0D32B2;opacity:1.000000;stroke-width:5;"/></g><text class="text-bold" x="546.000000" y="228.000000" style="text-anchor:middle;font-size:16px;fill:#0A0F25">Bob</text></g><g id="db"><g class="shape" ><path d="M 929 186 C 929 162 984.8 162 991 162 C 997.2 162 1053 162 1053 186 V 264 C 1053 288 997.2 288 991 288 C 984.8 288 929 288 929 264 V 186 Z" style="fill:#EDF0FD;stroke:#0D32B2;opacity:1.000000;stroke-width:2;"/><path d="M 929 186 C 929 210 984.8 210 991 210 C 997.2 210 1053 210 1053 186" style="fill:#EDF0FD;stroke:#0D32B2;opacity:1.000000;stroke-width:2;"/></g><text class="text-bold" x="991.000000" y="240.000000" style="text-anchor:middle;font-size:16px;fill:#0A0F25">db</text></g><g id="queue"><g class="shape" ><path d="M 1394 162 H 1495 C 1519 162 1519 218.7 1519 225 C 1519 231.3 1519 288 1495 288 H 1394 C 1370 288 1370 231.3 1370 225 C 1370 218.7 1370 162 1394 162 Z" style="fill:#F0F3F9;stroke:#0D32B2;opacity:1.000000;stroke-width:2;"/><path d="M 1495 162 C 1471 162 1471 218.7 1471 225 C 1471 231.3 1471 288 1495 288" style="fill:#F0F3F9;stroke:#0D32B2;opacity:1.000000;stroke-width:2;"/></g><text class="text-bold" x="1432.500000" y="228.000000" style="text-anchor:middle;font-size:16px;fill:#0A0F25">queue</text></g><g id="service"><g class="shape" ><rect x="1836" y="50" width="202" height="238" style="fill:#F7F8FE;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" /></g><text class="text-bold" x="1937.000000" y="116.000000" style="text-anchor:middle;font-size:16px;fill:#0A0F25"><tspan x="1937.000000" dy="0.000000">an</tspan><tspan x="1937.000000" dy="17.250000">odd</tspan><tspan x="1937.000000" dy="17.250000">service</tspan><tspan x="1937.000000" dy="17.250000">with</tspan><tspan x="1937.000000" dy="17.250000">a</tspan><tspan x="1937.000000" dy="17.250000">name</tspan><tspan x="1937.000000" dy="17.250000">in</tspan><tspan x="1937.000000" dy="17.250000">multiple lines</tspan></text></g><g id="(alice -&gt; bob)[0]"><marker id="mk-3990223579" markerWidth="10.000000" markerHeight="12.000000" refX="7.000000" refY="6.000000" viewBox="0.000000 0.000000 10.000000 12.000000" orient="auto" markerUnits="userSpaceOnUse"> <polygon class="connection" fill="#0D32B2" stroke-width="2" points="0.000000,0.000000 10.000000,6.000000 0.000000,12.000000" /> </marker><path d="M 88.500000 438.000000 L 535.500000 438.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="313.500000" y="427.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">Authentication Request</text></g><g id="(bob -&gt; service)[0]"><path d="M 554.500000 588.000000 L 1928.000000 588.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="1241.500000" y="577.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">make request for something that is quite far away and requires a really long label to take all the space between the objects</text></g><g id="(service -&gt; db)[0]"><path d="M 1930.000000 738.000000 L 1000.000000 738.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="1464.500000" y="727.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">validate credentials</text></g><g id="(db -&gt; service)[0]"><path d="M 998.000000 888.000000 L 1928.000000 888.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:8.000000,7.892511;" marker-end="url(#mk-3990223579)" /></g><g id="(service -&gt; bob)[0]"><path d="M 1930.000000 1038.000000 L 556.500000 1038.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:8.000000,7.892511;" marker-end="url(#mk-3990223579)" /></g><g id="(bob -&gt; alice)[0]"><path d="M 537.500000 1188.000000 L 90.500000 1188.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="314.000000" y="1177.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">Authentication Response</text></g><g id="(alice -&gt; bob)[1]"><path d="M 88.500000 1338.000000 L 535.500000 1338.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="314.000000" y="1327.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">Another authentication Request</text></g><g id="(bob -&gt; queue)[0]"><path d="M 554.500000 1488.000000 L 1435.500000 1488.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="995.500000" y="1477.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">do it later</text></g><g id="(queue -&gt; bob)[0]"><marker id="mk-1225746125" markerWidth="25.000000" markerHeight="30.000000" refX="17.500000" refY="15.000000" viewBox="0.000000 0.000000 25.000000 30.000000" orient="auto" markerUnits="userSpaceOnUse"> <polygon class="connection" fill="green" stroke-width="5" points="0.000000,0.000000 25.000000,15.000000 0.000000,30.000000" /> </marker><path d="M 1436.000000 1638.000000 L 561.000000 1638.000000" class="connection" style="fill:none;stroke:green;opacity:1.000000;stroke-width:5;stroke-dasharray:15.000000,14.106102;" marker-end="url(#mk-1225746125)" /><text class="text-italic" x="995.000000" y="1626.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">stored</text></g><g id="(bob -&gt; alice)[1]"><path d="M 537.500000 1788.000000 L 90.500000 1788.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="313.500000" y="1777.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">Another authentication Response</text></g><g id="(alice -- )[0]"><path d="M 81.500000 290.000000 L 81.500000 1937.000000" class="connection" style="fill:none;stroke:red;opacity:1.000000;stroke-width:2;stroke-dasharray:20.000000,19.731279;" /></g><g id="(bob -- )[0]"><path d="M 546.000000 293.000000 L 546.000000 1935.500000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:5;stroke-dasharray:50.000000,47.020340;" /></g><g id="(db -- )[0]"><path d="M 991.000000 290.000000 L 991.000000 1937.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:20.000000,19.731279;" /></g><g id="(queue -- )[0]"><path d="M 1444.500000 290.000000 L 1444.500000 1937.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:20.000000,19.731279;" /></g><g id="(service -- )[0]"><path d="M 1937.000000 290.000000 L 1937.000000 1937.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:20.000000,19.731279;" /></g><style type="text/css"><![CDATA[
+</style><g id="alice"><g class="shape" ><path d="M 163 288 H 0 V 285.7545 C 0 258.8088 17.899 234.5168 46.06 222.8811 C 30.5476 213.491 21.2401 198.1809 21.2401 181.4419 C 21.2401 153.0672 48.2079 130 81.3807 130 C 114.5535 130 141.5213 153.0672 141.5213 181.4419 C 141.5213 198.1809 132.4525 213.2869 116.7014 223.0853 C 144.8625 234.721 162.7614 259.0129 162.7614 285.9587 V 288 H 163 Z" style="fill:#E3E9FD;stroke:red;opacity:1.000000;stroke-width:2;"/></g><text class="text-bold" x="81.500000" y="196.000000" style="text-anchor:middle;font-size:16px;fill:#0A0F25"><tspan x="81.500000" dy="0.000000">Alice</tspan><tspan x="81.500000" dy="19.333333">line</tspan><tspan x="81.500000" dy="19.333333">breaker</tspan></text></g><g id="bob"><g class="shape" ><path d="M 612 288 H 480 V 286.2093 C 480 264.7209 494.4949 245.3488 517.3001 236.0698 C 504.7379 228.5814 497.2006 216.3721 497.2006 203.0233 C 497.2006 180.3953 519.0395 162 545.9034 162 C 572.7672 162 594.6062 180.3953 594.6062 203.0233 C 594.6062 216.3721 587.2621 228.4186 574.5066 236.2326 C 597.3119 245.5117 611.8067 264.8838 611.8067 286.3721 V 288 H 612 Z" style="fill:#E3E9FD;stroke:#0D32B2;opacity:1.000000;stroke-width:5;"/></g><text class="text-bold" x="546.000000" y="228.000000" style="text-anchor:middle;font-size:16px;fill:#0A0F25">Bob</text></g><g id="db"><g class="shape" ><path d="M 929 186 C 929 162 984.8 162 991 162 C 997.2 162 1053 162 1053 186 V 264 C 1053 288 997.2 288 991 288 C 984.8 288 929 288 929 264 V 186 Z" style="fill:#EDF0FD;stroke:#0D32B2;opacity:1.000000;stroke-width:2;"/><path d="M 929 186 C 929 210 984.8 210 991 210 C 997.2 210 1053 210 1053 186" style="fill:#EDF0FD;stroke:#0D32B2;opacity:1.000000;stroke-width:2;"/></g><text class="text-bold" x="991.000000" y="240.000000" style="text-anchor:middle;font-size:16px;fill:#0A0F25">db</text></g><g id="queue"><g class="shape" ><path d="M 1394 162 H 1495 C 1519 162 1519 218.7 1519 225 C 1519 231.3 1519 288 1495 288 H 1394 C 1370 288 1370 231.3 1370 225 C 1370 218.7 1370 162 1394 162 Z" style="fill:#F0F3F9;stroke:#0D32B2;opacity:1.000000;stroke-width:2;"/><path d="M 1495 162 C 1471 162 1471 218.7 1471 225 C 1471 231.3 1471 288 1495 288" style="fill:#F0F3F9;stroke:#0D32B2;opacity:1.000000;stroke-width:2;"/></g><text class="text-bold" x="1432.500000" y="228.000000" style="text-anchor:middle;font-size:16px;fill:#0A0F25">queue</text></g><g id="service"><g class="shape" ><rect x="1836" y="50" width="202" height="238" style="fill:#F7F8FE;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" /></g><text class="text-bold" x="1937.000000" y="116.000000" style="text-anchor:middle;font-size:16px;fill:#0A0F25"><tspan x="1937.000000" dy="0.000000">an</tspan><tspan x="1937.000000" dy="17.250000">odd</tspan><tspan x="1937.000000" dy="17.250000">service</tspan><tspan x="1937.000000" dy="17.250000">with</tspan><tspan x="1937.000000" dy="17.250000">a</tspan><tspan x="1937.000000" dy="17.250000">name</tspan><tspan x="1937.000000" dy="17.250000">in</tspan><tspan x="1937.000000" dy="17.250000">multiple lines</tspan></text></g><g id="(alice -- )[0]"><path d="M 81.500000 290.000000 L 81.500000 1937.000000" class="connection" style="fill:none;stroke:red;opacity:1.000000;stroke-width:2;stroke-dasharray:20.000000,19.731279;" /></g><g id="(bob -- )[0]"><path d="M 546.000000 293.000000 L 546.000000 1935.500000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:5;stroke-dasharray:50.000000,47.020340;" /></g><g id="(db -- )[0]"><path d="M 991.000000 290.000000 L 991.000000 1937.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:20.000000,19.731279;" /></g><g id="(queue -- )[0]"><path d="M 1444.500000 290.000000 L 1444.500000 1937.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:20.000000,19.731279;" /></g><g id="(service -- )[0]"><path d="M 1937.000000 290.000000 L 1937.000000 1937.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:20.000000,19.731279;" /></g><g id="(alice -&gt; bob)[0]"><marker id="mk-3990223579" markerWidth="10.000000" markerHeight="12.000000" refX="7.000000" refY="6.000000" viewBox="0.000000 0.000000 10.000000 12.000000" orient="auto" markerUnits="userSpaceOnUse"> <polygon class="connection" fill="#0D32B2" stroke-width="2" points="0.000000,0.000000 10.000000,6.000000 0.000000,12.000000" /> </marker><path d="M 88.500000 438.000000 L 535.500000 438.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="313.500000" y="427.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">Authentication Request</text></g><g id="(bob -&gt; service)[0]"><path d="M 554.500000 588.000000 L 1928.000000 588.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="1241.500000" y="577.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">make request for something that is quite far away and requires a really long label to take all the space between the objects</text></g><g id="(service -&gt; db)[0]"><path d="M 1930.000000 738.000000 L 1000.000000 738.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="1464.500000" y="727.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">validate credentials</text></g><g id="(db -&gt; service)[0]"><path d="M 998.000000 888.000000 L 1928.000000 888.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:8.000000,7.892511;" marker-end="url(#mk-3990223579)" /></g><g id="(service -&gt; bob)[0]"><path d="M 1930.000000 1038.000000 L 556.500000 1038.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;stroke-dasharray:8.000000,7.892511;" marker-end="url(#mk-3990223579)" /></g><g id="(bob -&gt; alice)[0]"><path d="M 537.500000 1188.000000 L 90.500000 1188.000000" class="connection" style="fill:none;stroke:#0D32B2;opacity:1.000000;stroke-width:2;" marker-end="url(#mk-3990223579)" /><text class="text-italic" x="314.000000" y="1177.000000" style="text-anchor:middle;font-size:16px;fill:#676C7E">Authentication Response</text></g><g id="(alice -&gt; 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 .text-bold {
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 }
diff --git a/e2etests/testdata/stable/sequence_diagram_span/dagre/board.exp.json b/e2etests/testdata/stable/sequence_diagram_span/dagre/board.exp.json
index 9c24b0a10..8f7545fc0 100644
--- a/e2etests/testdata/stable/sequence_diagram_span/dagre/board.exp.json
+++ b/e2etests/testdata/stable/sequence_diagram_span/dagre/board.exp.json
@@ -692,7 +692,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t <- itemResponse.t)[0]",
@@ -731,7 +731,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
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       "id": "(scorer.t -> item.t1)[0]",
@@ -770,7 +770,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t <- item.t1)[0]",
@@ -809,7 +809,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t -> essayRubric.t)[0]",
@@ -848,7 +848,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(itemResponse -> essayRubric.t.c)[0]",
@@ -887,7 +887,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(essayRubric.t.c -> concept.t)[0]",
@@ -926,7 +926,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer <- essayRubric.t)[0]",
@@ -965,7 +965,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t -> itemOutcome.t1)[0]",
@@ -1004,7 +1004,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t -> item.t2)[0]",
@@ -1043,7 +1043,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
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     {
       "id": "(scorer.t -> item.t3)[0]",
@@ -1082,7 +1082,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
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     {
       "id": "(scorer.t -> itemOutcome.t2)[0]",
@@ -1121,7 +1121,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
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     {
       "id": "(scorer.t -> itemOutcome.t3)[0]",
@@ -1160,7 +1160,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
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     {
       "id": "(scorer -- )[0]",
diff --git a/e2etests/testdata/stable/sequence_diagram_span/dagre/sketch.exp.svg b/e2etests/testdata/stable/sequence_diagram_span/dagre/sketch.exp.svg
index 57f9d3041..4e2caf15a 100644
--- a/e2etests/testdata/stable/sequence_diagram_span/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/sequence_diagram_span/dagre/sketch.exp.svg
@@ -14,7 +14,7 @@ width="2516" height="2441" viewBox="-100 -50 2516 2441"><style type="text/css">
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diff --git a/e2etests/testdata/stable/sequence_diagram_span/elk/board.exp.json b/e2etests/testdata/stable/sequence_diagram_span/elk/board.exp.json
index 9c24b0a10..8f7545fc0 100644
--- a/e2etests/testdata/stable/sequence_diagram_span/elk/board.exp.json
+++ b/e2etests/testdata/stable/sequence_diagram_span/elk/board.exp.json
@@ -692,7 +692,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t <- itemResponse.t)[0]",
@@ -731,7 +731,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t -> item.t1)[0]",
@@ -770,7 +770,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t <- item.t1)[0]",
@@ -809,7 +809,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t -> essayRubric.t)[0]",
@@ -848,7 +848,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(itemResponse -> essayRubric.t.c)[0]",
@@ -887,7 +887,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(essayRubric.t.c -> concept.t)[0]",
@@ -926,7 +926,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer <- essayRubric.t)[0]",
@@ -965,7 +965,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t -> itemOutcome.t1)[0]",
@@ -1004,7 +1004,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t -> item.t2)[0]",
@@ -1043,7 +1043,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t -> item.t3)[0]",
@@ -1082,7 +1082,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t -> itemOutcome.t2)[0]",
@@ -1121,7 +1121,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer.t -> itemOutcome.t3)[0]",
@@ -1160,7 +1160,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "(scorer -- )[0]",
diff --git a/e2etests/testdata/stable/sequence_diagram_span/elk/sketch.exp.svg b/e2etests/testdata/stable/sequence_diagram_span/elk/sketch.exp.svg
index 57f9d3041..4e2caf15a 100644
--- a/e2etests/testdata/stable/sequence_diagram_span/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/sequence_diagram_span/elk/sketch.exp.svg
@@ -14,7 +14,7 @@ width="2516" height="2441" viewBox="-100 -50 2516 2441"><style type="text/css">
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diff --git a/e2etests/testdata/stable/sequence_diagrams/dagre/board.exp.json b/e2etests/testdata/stable/sequence_diagrams/dagre/board.exp.json
index 6de7efd8b..ce6349001 100644
--- a/e2etests/testdata/stable/sequence_diagrams/dagre/board.exp.json
+++ b/e2etests/testdata/stable/sequence_diagrams/dagre/board.exp.json
@@ -2497,7 +2497,7 @@
       "animated": false,
       "tooltip": "",
       "icon": null,
-      "zIndex": 0
+      "zIndex": 2
     },
     {
       "id": "a_sequence.(scorer.t <- itemResponse.t)[0]",
@@ -2536,7 +2536,7 @@
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diff --git a/e2etests/testdata/stable/sequence_diagrams/elk/board.exp.json b/e2etests/testdata/stable/sequence_diagrams/elk/board.exp.json
index d45d2311f..42f918573 100644
--- a/e2etests/testdata/stable/sequence_diagrams/elk/board.exp.json
+++ b/e2etests/testdata/stable/sequence_diagrams/elk/board.exp.json
@@ -2497,7 +2497,7 @@
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