いやわからんけど、なんか#FF000！！#00FFFFF！！#FF00FF！！みたいな感じで色塗りするひとおらん？

@bramvandijk88 👍
Two additonal tips to help colourblind people:
- sufficiently thick lines, the thinner the tougher the colours are to identify,
- avoid stylish pastel palettes and use the ugly RGB saturated colours. #FF000 #0000FF are the same gray level but most colorbling people will distinguish them easily.