Fixed foregroundOnAccent recipe to work in all states #18765
Merged
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Pull request checklist
$ yarn change
Description of changes
Fixed an issue where a previous relationship between accentFill and foregroundOnAccent tried to maintain the same foreground color regardless of fill. This was always problematic with the fill offset deltas as it was possible to specify deltas so far apart that no single foreground color could meet contrast. Going forward I think we want a more layered approach, where the fill color is based on that component's container color, and the foreground color is based on that fill color. For example, it's possible for the foreground to flip between black and white given a large fill delta.
Focus areas to test
Accent-filled components like buttons or switches.