As stated, some colors really are too similar to eachother. Will be confusing if two people on opposing teams pick colors that look very similar
Also, please no black color. Makes it difficult to see what kind of unit it is. Stick to bright colors. The old dark blue color is the darkest color you should go with.
example: is that unit an interceptor or mercy? The triangle icon looks the same, but the symbol in the icon is different, and you can't see that with black color
Anyway, as long as you don't change any of the current colors I'm fine with it. Currently it seems you also remove some colors that were there before, and some people might not like that you removed their favorite color
In other words: Don't touch my Ferrari red color!