Optional
Per-anchor RGBA, flat, in 0..1 floats. Length must equal to.length and be a positive multiple of 4.
to.length
Per-anchor RGBA, flat, in 0..1 floats (matches the renderer's stroke.vertexColors / PathDrawCommand.vertexColors color space). Length must equal from.length.
stroke.vertexColors
PathDrawCommand.vertexColors
from.length
Per-anchor RGBA, flat, in 0..1 floats. Length must equal
to.lengthand be a positive multiple of 4.