When we open the appearance editor, we see 30 ready-made color schemes. Even though their colors are different, the vehicles are identical. My suggestion is to add a new tab, but divide this new tab into much smaller parts, for example, a vehicle can be divided into 100 small parts and a different color can be assigned to each part, or each part of the design number 30 can be colored. I think players will enjoy using this option to create unique shapes/designs. I think it would be possible to produce vehicles that are more similar to the vehicles racing today by changing the colors of small parts one by one. thanks.
