Color blind compatibility

Not a critical feature but would be a perfect addition to the "Link"
Right now all I can see is 4~ colors (1x White, 2x Red, 1x Blue, 1x Yellow).
I'm not sure there are other things depending on colors, if there are any then I wouldn't know. Maybe same colors but different shapes?
PS: Although I use only 2 products for now but that would make it easier for me to choose from mini and micro easier.

Thank you