Migrate materialColor* attributes into colors

TLDR:
* This change should not break anything or change any color.
* Simplifies theming and styling while improving developer experience.
* With this  developers can often skip styling for color entirely, while ensuring consistency and preventing accidental overrides.

Bug: 374273611
Test: presubmit
Flag: EXEMPT bugfix
Change-Id: Id19038078e83c73847b1a7c686c3a3df1ecccac2