so lots of ppl have complaints about the icons and distinguishing them. i have trouble telling to sometimes. a rather easy fix would be to change the outline color of the icons to that of your secondary color choice. might not be the total fix but would definitely make some progress...
There definitely is an issue with differentiation between colors. Especially between blue and purple and red and pink. Very difficult to tell them apart. This has been mentioned quite a few times and I really hope Uber has payed attention and will change the colors.