diff --git a/ci/release/changelogs/next.md b/ci/release/changelogs/next.md
index 196366431..cc7633dd5 100644
--- a/ci/release/changelogs/next.md
+++ b/ci/release/changelogs/next.md
@@ -9,3 +9,5 @@
 
 - 3D style was missing border and other styles for its top and right faces.
   [#187](https://github.com/terrastruct/d2/pull/187)
+- System dark mode was incorrectly applying to markdown in renders.
+  [#159](https://github.com/terrastruct/d2/issues/159)
diff --git a/d2renderers/d2svg/github-markdown.css b/d2renderers/d2svg/github-markdown.css
index 587fdfd84..a1927dd09 100644
--- a/d2renderers/d2svg/github-markdown.css
+++ b/d2renderers/d2svg/github-markdown.css
@@ -21,40 +21,20 @@
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/chaos2/dagre/sketch.exp.svg b/e2etests/testdata/stable/chaos2/dagre/sketch.exp.svg
index 9dae57573..261fb127c 100644
--- a/e2etests/testdata/stable/chaos2/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/chaos2/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="1317" height="1854" viewBox="-100 -100 1317 1854"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/chaos2/elk/sketch.exp.svg b/e2etests/testdata/stable/chaos2/elk/sketch.exp.svg
index 2e7c5bf83..0a77d5f46 100644
--- a/e2etests/testdata/stable/chaos2/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/chaos2/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="1856" height="1097" viewBox="-88 -88 1856 1097"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/giant_markdown_test/dagre/sketch.exp.svg b/e2etests/testdata/stable/giant_markdown_test/dagre/sketch.exp.svg
index f30a806d5..0199cf74c 100644
--- a/e2etests/testdata/stable/giant_markdown_test/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/giant_markdown_test/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="3251" height="5500" viewBox="-100 -100 3251 5500"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/giant_markdown_test/elk/sketch.exp.svg b/e2etests/testdata/stable/giant_markdown_test/elk/sketch.exp.svg
index d0d830973..ec1a577f9 100644
--- a/e2etests/testdata/stable/giant_markdown_test/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/giant_markdown_test/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="3677" height="5048" viewBox="-88 -88 3677 5048"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/hr/dagre/sketch.exp.svg b/e2etests/testdata/stable/hr/dagre/sketch.exp.svg
index 1e62ecf3f..b77f2356c 100644
--- a/e2etests/testdata/stable/hr/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/hr/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="938" height="786" viewBox="-100 -100 938 786"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/hr/elk/sketch.exp.svg b/e2etests/testdata/stable/hr/elk/sketch.exp.svg
index b48ae29ae..a4445e062 100644
--- a/e2etests/testdata/stable/hr/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/hr/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="1364" height="334" viewBox="-88 -88 1364 334"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/li1/dagre/sketch.exp.svg b/e2etests/testdata/stable/li1/dagre/sketch.exp.svg
index 537c36f07..00585b3ee 100644
--- a/e2etests/testdata/stable/li1/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/li1/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="579" height="752" viewBox="-100 -100 579 752"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/li1/elk/sketch.exp.svg b/e2etests/testdata/stable/li1/elk/sketch.exp.svg
index fae2fbb7d..4a9a4e1ba 100644
--- a/e2etests/testdata/stable/li1/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/li1/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="1005" height="326" viewBox="-88 -88 1005 326"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
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+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
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diff --git a/e2etests/testdata/stable/li2/dagre/sketch.exp.svg b/e2etests/testdata/stable/li2/dagre/sketch.exp.svg
index df186e758..d26594500 100644
--- a/e2etests/testdata/stable/li2/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/li2/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="445" height="728" viewBox="-100 -100 445 728"><style type="text/css">
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-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/li2/elk/sketch.exp.svg b/e2etests/testdata/stable/li2/elk/sketch.exp.svg
index cd35a6a51..5f719129c 100644
--- a/e2etests/testdata/stable/li2/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/li2/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="871" height="326" viewBox="-88 -88 871 326"><style type="text/css">
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 /* based on https://github.com/sindresorhus/github-markdown-css */
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-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/li3/dagre/sketch.exp.svg b/e2etests/testdata/stable/li3/dagre/sketch.exp.svg
index 3fa811e55..ac3c8e3a1 100644
--- a/e2etests/testdata/stable/li3/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/li3/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="547" height="1164" viewBox="-100 -100 547 1164"><style type="text/css">
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 /* based on https://github.com/sindresorhus/github-markdown-css */
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-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/li3/elk/sketch.exp.svg b/e2etests/testdata/stable/li3/elk/sketch.exp.svg
index 1ffb21413..863fd8d1e 100644
--- a/e2etests/testdata/stable/li3/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/li3/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="973" height="712" viewBox="-88 -88 973 712"><style type="text/css">
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-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
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+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
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 }
 
 .md {
diff --git a/e2etests/testdata/stable/li4/dagre/sketch.exp.svg b/e2etests/testdata/stable/li4/dagre/sketch.exp.svg
index 7c69c65e8..a3a46af63 100644
--- a/e2etests/testdata/stable/li4/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/li4/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="1120" height="1028" viewBox="-100 -100 1120 1028"><style type="text/css">
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-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
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+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
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 }
 
 .md {
diff --git a/e2etests/testdata/stable/li4/elk/sketch.exp.svg b/e2etests/testdata/stable/li4/elk/sketch.exp.svg
index c5034a445..18fd18194 100644
--- a/e2etests/testdata/stable/li4/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/li4/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="1546" height="576" viewBox="-88 -88 1546 576"><style type="text/css">
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-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
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 }
 
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diff --git a/e2etests/testdata/stable/lone_h1/dagre/sketch.exp.svg b/e2etests/testdata/stable/lone_h1/dagre/sketch.exp.svg
index 78adf837f..8ba23cfdc 100644
--- a/e2etests/testdata/stable/lone_h1/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/lone_h1/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="466" height="702" viewBox="-100 -100 466 702"><style type="text/css">
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-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
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 }
 
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diff --git a/e2etests/testdata/stable/lone_h1/elk/sketch.exp.svg b/e2etests/testdata/stable/lone_h1/elk/sketch.exp.svg
index 4ab998037..291d573b0 100644
--- a/e2etests/testdata/stable/lone_h1/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/lone_h1/elk/sketch.exp.svg
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+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/markdown/dagre/sketch.exp.svg b/e2etests/testdata/stable/markdown/dagre/sketch.exp.svg
index 1554f35a8..2e6a4f4ad 100644
--- a/e2etests/testdata/stable/markdown/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/markdown/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="731" height="838" viewBox="-100 -100 731 838"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/markdown/elk/sketch.exp.svg b/e2etests/testdata/stable/markdown/elk/sketch.exp.svg
index 07d21c614..9c4fa2f9a 100644
--- a/e2etests/testdata/stable/markdown/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/markdown/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="1158" height="386" viewBox="-88 -88 1158 386"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/md_code_block_fenced/dagre/sketch.exp.svg b/e2etests/testdata/stable/md_code_block_fenced/dagre/sketch.exp.svg
index 19b73a71c..8dc19a985 100644
--- a/e2etests/testdata/stable/md_code_block_fenced/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/md_code_block_fenced/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="396" height="763" viewBox="-100 -100 396 763"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/md_code_block_fenced/elk/sketch.exp.svg b/e2etests/testdata/stable/md_code_block_fenced/elk/sketch.exp.svg
index f92ec448f..8ec9133c2 100644
--- a/e2etests/testdata/stable/md_code_block_fenced/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/md_code_block_fenced/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="822" height="326" viewBox="-88 -88 822 326"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/md_code_block_indented/dagre/sketch.exp.svg b/e2etests/testdata/stable/md_code_block_indented/dagre/sketch.exp.svg
index a42d68826..5b8d58156 100644
--- a/e2etests/testdata/stable/md_code_block_indented/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/md_code_block_indented/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="412" height="803" viewBox="-100 -100 412 803"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/md_code_block_indented/elk/sketch.exp.svg b/e2etests/testdata/stable/md_code_block_indented/elk/sketch.exp.svg
index cb6fb2f54..a356606f0 100644
--- a/e2etests/testdata/stable/md_code_block_indented/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/md_code_block_indented/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="838" height="351" viewBox="-88 -88 838 351"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/md_code_inline/dagre/sketch.exp.svg b/e2etests/testdata/stable/md_code_inline/dagre/sketch.exp.svg
index e138fc4c3..fb87358a2 100644
--- a/e2etests/testdata/stable/md_code_inline/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/md_code_inline/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="313" height="676" viewBox="-100 -100 313 676"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/md_code_inline/elk/sketch.exp.svg b/e2etests/testdata/stable/md_code_inline/elk/sketch.exp.svg
index 5cf93b03d..3ed506def 100644
--- a/e2etests/testdata/stable/md_code_inline/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/md_code_inline/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="672" height="326" viewBox="-88 -88 672 326"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/p/dagre/sketch.exp.svg b/e2etests/testdata/stable/p/dagre/sketch.exp.svg
index 784c0f565..9ca7fcc80 100644
--- a/e2etests/testdata/stable/p/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/p/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="2057" height="676" viewBox="-100 -100 2057 676"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/p/elk/sketch.exp.svg b/e2etests/testdata/stable/p/elk/sketch.exp.svg
index 09d0af752..3bf333a4e 100644
--- a/e2etests/testdata/stable/p/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/p/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="2483" height="326" viewBox="-88 -88 2483 326"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/pre/dagre/sketch.exp.svg b/e2etests/testdata/stable/pre/dagre/sketch.exp.svg
index 940fc00e8..4ce88cf3f 100644
--- a/e2etests/testdata/stable/pre/dagre/sketch.exp.svg
+++ b/e2etests/testdata/stable/pre/dagre/sketch.exp.svg
@@ -37,40 +37,20 @@ width="802" height="822" viewBox="-100 -100 802 822"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {
diff --git a/e2etests/testdata/stable/pre/elk/sketch.exp.svg b/e2etests/testdata/stable/pre/elk/sketch.exp.svg
index a3f26f8e5..ceb094c98 100644
--- a/e2etests/testdata/stable/pre/elk/sketch.exp.svg
+++ b/e2etests/testdata/stable/pre/elk/sketch.exp.svg
@@ -37,40 +37,20 @@ width="1228" height="370" viewBox="-88 -88 1228 370"><style type="text/css">
 }
 
 /* based on https://github.com/sindresorhus/github-markdown-css */
-@media (prefers-color-scheme: dark) {
-  .md {
-    color-scheme: dark;
-    --color-fg-default: #c9d1d9;
-    --color-fg-muted: #8b949e;
-    --color-fg-subtle: #484f58;
-    --color-canvas-default: #0d1117;
-    --color-canvas-subtle: #161b22;
-    --color-border-default: #30363d;
-    --color-border-muted: #21262d;
-    --color-neutral-muted: rgba(110, 118, 129, 0.4);
-    --color-accent-fg: #58a6ff;
-    --color-accent-emphasis: #1f6feb;
-    --color-attention-subtle: rgba(187, 128, 9, 0.15);
-    --color-danger-fg: #f85149;
-  }
-}
-
-@media (prefers-color-scheme: light) {
-  .md {
-    color-scheme: light;
-    --color-fg-default: #24292f;
-    --color-fg-muted: #57606a;
-    --color-fg-subtle: #6e7781;
-    --color-canvas-default: #ffffff;
-    --color-canvas-subtle: #f6f8fa;
-    --color-border-default: #d0d7de;
-    --color-border-muted: hsla(210, 18%, 87%, 1);
-    --color-neutral-muted: rgba(175, 184, 193, 0.2);
-    --color-accent-fg: #0969da;
-    --color-accent-emphasis: #0969da;
-    --color-attention-subtle: #fff8c5;
-    --color-danger-fg: #cf222e;
-  }
+.md {
+  color-scheme: light;
+  --color-fg-default: #24292f;
+  --color-fg-muted: #57606a;
+  --color-fg-subtle: #6e7781;
+  --color-canvas-default: #ffffff;
+  --color-canvas-subtle: #f6f8fa;
+  --color-border-default: #d0d7de;
+  --color-border-muted: hsla(210, 18%, 87%, 1);
+  --color-neutral-muted: rgba(175, 184, 193, 0.2);
+  --color-accent-fg: #0969da;
+  --color-accent-emphasis: #0969da;
+  --color-attention-subtle: #fff8c5;
+  --color-danger-fg: #cf222e;
 }
 
 .md {