This text proposes a sophisticated architectural shift in Chromium’s rendering engine to enable more efficient color animations by adopting a model similar to Raster-Inducing Scroll (RIS). Instead of the current method that frequently regenerates small paint records through native paint worklets, the author suggests using late-bound color slots that allow original paint operations to remain stable while injecting live color values during the rasterization phase. This approach utilizes existing compositor animation pathways to transport color data, but requires new mechanisms to handle the complexities of color inheritance, LCD text quality, and invalidation tracking. By maintaining a side table of visual rects keyed to specific color slots, the engine could update animated colors across a frameset without requiring a main-thread commit or full re-recording. Ultimately, the proposal seeks to transform color from a static baked-in value into a dynamic playback parameter, significantly optimizing performance for properties like background-color and borders.