优化了VisualElement的渲染，使其能够频繁更改颜色，例如内置样式颜色动画。
此选项从 GPU 缓冲区获取颜色，以防止在颜色更改时重新细分几何体或进行 CPU 更新。
将此选项应用于更改以下任何样式属性的 VisualElement
background-color
border-color
color
border-bottom-color
border-left-color
border-right-color
border-top-color
text-color
unity-background-image-tint-color
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