Can you change it as much as you want, or do you have to pay the TBT each time you want to change the color? Also, if you want to keep the color but change your user title, does the color stay?
You do have to pay TBT bells for each new color you'd like to use, but you can switch between them anytime you'd like after you've purchased and configured the item(s). Changing the text in your user title won't affect the custom color.