message: T::DEFAULT_MAX_VALUE instead of 255
diff: @@ -734,7 +734,7 @@ impl<T: Primitive> Blend for Rgba<T> {
  if other.0[3].is_zero() {
  return;
  }
  - if other.0[3].to_i32().unwrap() == 255 {
  + if other.0[3] == T::DEFAULT_MAX_VALUE {
  *self = *other;
  return;
  }
  