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backstage/migrate-mui-styles-to-bui-css-modules

MUI 4 to BUI: Migrate makeStyles usage to BUI CSS modules

backstagemigrationmuibuistylescssmodules
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Migrates static makeStyles / withStyles usage to adjacent CSS modules during the MUI 4 → BUI migration.

Covers

  • Static makeStyles / withStyles style objects → sibling *.module.css
  • ClassName wiring updated to CSS module imports where deterministic

TODOs / won't-do

  • Dynamic theme callbacks / nested selectors that need human rewrite
  • Runtime style factories that cannot be serialized to CSS modules
  • Fixture harness skips persisting adjacent CSS for tests/<case>/input.tsx; goldens use expected.module.css + scripts/assert-css-goldens.sh

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