So, with 1.16 in development I think it is a better time than ever to introduce new concepts for the mod, what if via some sort of controls in the Tardis you could individually change the color of the lights of rotors, lamps, and roundels that have lights, this way the Tardis could feel more custom as if you wanted you could change the color of all the different Tardis lights.

That would be quite cool indeed

At the very least I'm sure we can do the thing done with dogs in Minecraft and have dye placeable on rotors. Really cool ideas though, helps conserve clutter and give blocks more unique purpose!