An age-old gripe with City of Heroes has always been 'Why is Costume Piece X in Category Y?'
In the Long Ago, this was a problem with Tails being located under the Belt category (thus denying all of the ancient cat girls, demons, and dragon people any way to keep their pants from falling down while fighting crime) and it's still hanging around in other categories today. My suggestion is to repeat that process and decouple some of the more specific options from the broader categories they're currently in, making them into their own detail slots. I'll admit I have no idea how labor intensive the process would be, how jumbled it might make the costume creator UI, or what issues it might give against any limit on the amount of costume details each character can have, but at least it wouldn't require the creation of new textures or costume pieces. I've edited a few screenshots to give examples of these divergent categories and what the separated choices could end up looking like.
- Break down 'Detail 1' into multiple sections. For example, 'Head Details' (Horns, Antennas, Ear Muffs, etc.) and 'Eye Details' (Glasses, Monocles, Robotic Eyes, etc.)
- Move Facial Hair from 'Detail 2' into its own category
- Move the Neck options into their own category outside of the 'Shoulder' categories
- Separate the various types of 'Symbols' from the 'Chest Detail' category
There are definitely some other category breakdowns that I missed, but these seemed like the most workable examples. Also I readily acknowledge that without some specific editing of which options go into which new categories and how many of them can be selected at one time, there would probably be a few clipping issues. However, that's already present with a number of other costume pieces as is (looking at you Jackets, High Collar capes, and just... The Huge model in-general). I just figured that this would be a good way to give folks even more creative options without requiring new assets to be made.