Discord UI customization with Nitro

Alright, so I was thinking about Discord Customization and how it could work with Discord Nitro Subscriptions and I thought of this
Free themes: Default, Light, Red, Blue, Green,
You would be allowed to change sounds, fonts etc with a few options, (like 2-3) and 

Nitro themes:Yellow, Purple, Pink, Orange, Brown, and Lighter/Darker variants of all of those, Game related themes,
Editable sound effects of a full catalog of sound effects fitting each function (Getting a call, normal messages, notification sounds, pings etc) The same would go for UI and Text (font/color) customization.
This could also be a way to add gaming related Themes, Fonts, UI and Sounds to Discord as very appealing Nitro bonuses.

I would say give people full customization on adding images and exact colors but I'm not too sure about that