setColor method
Implementation
void setColor(Color color, {bool premultiply = false}) {
final double multiplier;
if (premultiply) {
multiplier = color.a;
} else {
multiplier = 1.0;
}
setFloat(color.r / 255 * multiplier);
setFloat(color.g / 255 * multiplier);
setFloat(color.b / 255 * multiplier);
setFloat(color.a);
}