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Brand: env override for trace palette #311

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Merged
milanofthe merged 1 commit into from
Jun 2, 2026
Merged

Brand: env override for trace palette #311

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22 changes: 19 additions & 3 deletions src/lib/constants/brand.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,21 @@
* key an accent override off it; the JS accent (`accent` / `keywordColor`) feeds
* the canvas default color and the CodeMirror palette.
*/

/**
* Parse a comma-separated palette from an env var (e.g.
* `VITE_BRAND_TRACE_PALETTE="#0070C0,#81C784,..."`) into a color array.
* Returns null when unset/empty so the caller keeps its default.
*/
function parsePalette(raw: string | undefined): string[] | null {
if (!raw) return null;
const colors = raw
.split(',')
.map((c) => c.trim())
.filter(Boolean);
return colors.length > 0 ? colors : null;
}

export const BRAND = {
/** Short key, set as `data-brand` on <html> for CSS overrides. */
key: import.meta.env.VITE_BRAND_KEY || 'pathsim',
Expand All @@ -24,10 +39,11 @@ export const BRAND = {
framework: import.meta.env.VITE_BRAND_FRAMEWORK || 'PathSim',
/**
* Supplementary plot trace colors (used after trace 0, which takes the
* accent). A re-branded build can override this so the palette doesn't clash
* with its accent (e.g. a red-accent brand drops the leading red).
* accent). A re-branded build can override this via `VITE_BRAND_TRACE_PALETTE`
* (comma-separated hex) so the palette doesn't clash with its accent (e.g. a
* red-accent brand drops the leading red).
*/
tracePalette: [
tracePalette: parsePalette(import.meta.env.VITE_BRAND_TRACE_PALETTE) ?? [
'#E57373', // Red
'#81C784', // Green
'#64B5F6', // Blue
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