Development of v1.2.5 has begun for UltraColor and the version is planning one of UltraColor's next possible intermediate features: the ability to add your own pre-defined gradients for players to use! This has been a suggestion a while back from a fellow user and now I've had thoughts of adding this into the plugin.
Before this gets released and more gets added to it, I need to see an estimate of how many people would be interested in using it. You may find a survey
here to give your feedback on this feature being a possibility! The survey will be open until Saturday, May 22nd at 8 pm Central time, so make your response while you can!