Managing themes is awful

[FissionChips]

Managing themes is just awful, it's cluttered with a bunch of default themes (all of which completely useless to me) which cannot be removed or hidden, and then a bunch of exceptionally hideous recommended themes to boot.

I'm trying to make the best of nova since it's going to be forced on us in a month anyway. The themes I was using nova made terrible, but installing and evaluating themes is just so bad with all of this clutter.

Please let us remove or hide default themes, and removed recommended themes.

Additionally theme previews could use more example elements (e.g. group icons), and updates to show how they look under nova.