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feat(mermaid): style sequence diagrams in the plain text-diagram theme #1869

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Merged
ronggur merged 1 commit into from
Nov 12, 2026
Merged

feat(mermaid): style sequence diagrams in the plain text-diagram theme #1869

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14 changes: 14 additions & 0 deletions src/plugins/mermaidBrandTheme.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,12 @@ const themeCSS = `
.flowchart-link { stroke-width: 1px; }
.edge-pattern-dotted, .edge-pattern-dashed { stroke: ${PINE_FORGE}; stroke-width: 1px; stroke-dasharray: 4 3; }
.arrowMarkerPath { stroke-dasharray: none !important; }
/* Sequence diagrams: thin grey lifelines, mono labels, no repeated actors at the bottom. */
.actor { fill: #ffffff; stroke: ${SHARK_GRAY}; stroke-width: 1px; }
.actor-line { stroke: ${SILVER_KEYLINE}; stroke-width: 1px; stroke-dasharray: 3 4; }
.messageLine0, .messageLine1 { stroke-width: 1px; }
.messageText { font-family: ${MONO}; font-size: 12.5px; fill: ${UTILITY_SLATE}; stroke: none; }
.actor, text.actor > tspan { font-family: ${MONO}; font-size: 13px; }
`;

export const mermaidBrandConfig = {
Expand All @@ -51,6 +57,14 @@ export const mermaidBrandConfig = {
wrappingWidth: 360,
subGraphTitleMargin: { top: 4, bottom: 12 },
},
sequence: {
mirrorActors: false,
actorMargin: 90,
width: 150,
messageMargin: 44,
wrap: true,
useMaxWidth: true,
},
themeCSS,
themeVariables: {
fontFamily: MONO,
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