[Duplicate] Make your own themes?

I think you guys should have an open market where everyone can make their own themes, and share them with the rest of the community.

I personally also want to completely design my own theme.

If not that, I suggest your designers work on a new theme that includes a full rainbow gradient as an outline to the keys, with black as the main color. 

Something of that matter:   http://imgur.com/a/BVE01

Thank you so much, I am enjoying your app. I would love to see a theme like that implemented, or even having the option to design your own themes.