tree cd0207358ce074f4bdf11beb1026cf6ebbd6f98d
parent 87910ce3c3d45c0aea12b48eefe6303ce8b3b6ea
author Qun Cheng <36861262+QuncCccccc@users.noreply.github.com> 1789181633 -0700
committer GitHub <noreply@github.com> 1789181633 +0000
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[material_ui] Update gen_defaults color helper (#12846)

Work toward flutter/flutter#187899.

This PR is to update the `colorWithOpacity` helper to preserve existing Material 3 generated defaults by continuing to emit `withOpacity(...)`, while Material 3 Expressive generated defaults emit `withValues(alpha: ...)` to avoid introducing new deprecated `Color.withOpacity` usages.

## Pre-Review Checklist