ShapeColor

A 32-bit color packed as 0xAARRGGBB — the renderer-neutral paint carrier of the scene graph's styles.

The channels decode from the low 32 bits of argb. Equality is the value class's raw bit equality of argb: two colors are equal only when their packed bits match exactly — fully transparent colors with different color bits are not collapsed, and NONE is the single canonical spelling of "no paint".