Howdy. Relatively new to the game, played way back when and am getting back into SK recently and really surprised/impressed at all the new stuff like missions and while several things have irked me that seems impractical to bring up, personal color is one that may be the most likely to be changed.
So what I wanted to say is allow players to change their personal color at will for free or a small cost (50-100 crowns) using only a basic color palette. Colors here would include basics such as red, blue, green, yellow, orange, etc. Keep the color changing items, but reserve those for more exotic or 'rare' colors.
50-100 crowns is too little. 25000 is more reasonable for basics.