white
White
The white block is a reporter block in the Colors extension that reports an rgb color for white (i.e. r, g, and b all being 255).
Workaround
This block can be worked around by using anything that reports "{r: 255, g: 255, b: 255}", such as:
hsv [{"h": 360, "s": 0, "v": 1}] to rgb::#ff4c4c reporter