Personalized App Themes

I've seen many individuals suggest more themes and asking for different colours. I would find it difficult for y'all to add each individual colour so I have an idea! Similar to the way you can upload a hex code into the background on your discord banner we could have a feature that is for Plus members only, adding more incentive to buy plus! Would server for better customization, personalization, and just another way for individuals to express themselves! The first photo shows and example of a menu that could be displayed when choosing and entering the hex code as discord has. (Using discord as an example does not need to be similar just a way to enter a hex code for the app theme) The second photo shows where the display could be put and it could look!