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fix: upgrade lightningcss to 1.29.2 for oklch() color support - #418

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kojiwakayama merged 1 commit into
mainfrom
fix/upgrade-lightningcss-oklch-support
Feb 22, 2026
Merged

kojiwakayama merged 1 commit into
mainfrom
fix/upgrade-lightningcss-oklch-support

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Summary

  • Upgrades lightningcss from 1.22.0 to 1.29.2 to add support for modern CSS Color Level 4 functions
  • Fixes Error: Attempting to parse an unsupported color function "oklch" when rendering projects that use oklch() or color-mix(in oklch, ...) in their CSS

Test plan

  • Deploy to preview and verify a project using oklch() colors in CSS renders without errors
  • Verify CSS minification still works correctly for standard color formats (hex, hsl, rgb)

lightningcss 1.22.0 throws "Attempting to parse an unsupported color
function oklch" when processing CSS with modern color functions.
oklch() support was added in v1.24.0.
@kojiwakayama
kojiwakayama merged commit 4d78d7a into main Feb 22, 2026
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@kojiwakayama
kojiwakayama deleted the fix/upgrade-lightningcss-oklch-support branch February 22, 2026 13:13
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