rememberDominantColor was keyed on coverUrl, so each track change reset the extracted color to Transparent and the gradient dipped toward the fallback before tweening to the new color. Drop the key so the held color stays on the previous track's dominant until the new palette resolves -- the gradient now tweens directly to the new color. Combined with CoverPrefetcher warming the next cover, this matches Flutter's preload-then-atomic-swap UX (no flash on track change) via native Compose mechanisms rather than a literal preload pipeline.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen
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