Switch players icon sets (P1 icon set becomes P2 icon set and vice-versa)
Switch between players icon sets botton (Instead of having the 2 players displayed at the same time, you can press a botton near the color customize botton to switch between customizing P1 icon set or P2 icon set)
These were all I could've thought of. Maybe I'll make a post like this in the future if I get more ideas