feat: Generate CSS custom properties from LESS variables #11688
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RayBB
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Jan 20, 2026
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RayBB
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After reading the comment in the original issue I think this is good to go.
I thought we might want to add this to auto run in CI but I don't think that's needed as it's okay for it to be out of sync sometimes.
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Checks of an item from #11687
Technical
Added a build script (
scripts/generate-css-custom-properties.js) that generates CSS custom properties from all LESS variables instatic/css/less/(e.g.,@primary-blue→--primary-blue).This enables gradual migration from LESS variables to CSS custom properties.
Testing
node scripts/generate-css-custom-properties.jsormake cssstatic/css/less/generated-custom-properties.cssis generated with all LESS variables as CSS custom propertiesScreenshot
N/A (build tooling only)
Stakeholders
@cdrini @mekarpeles @jimchamp @RayBB