I like the idea of showing rerolls in a different color, but blue is already used for rolls that include both a minimum and maximum die roll together (such as a 2d6 with the result of a 1 and 6 will display as a 7 in blue). Currently: Red = lowest die roll Green = highest die roll Blue = both lowest and highest die roll Grey = die that is not included in final result (rerolled or dropped) Yellow could be used, but that might have more of an issue with contrast with the background. Orange could be used, but that might have an issue being distinguished from red. And any colors that are used should also have some other identifying characteristic that doesn't rely on color for any users with colorblindness.