Init redesign

The redesign isn't complete yet, but I'm sending in an early PR so we don't have to deal with resolving conflicts for too many files later. 

I'll try to complete the entire by this weekend! 
Ah thanks for reminding me about the image-url usage. Yeah, I guess I hadn't checked in the logo.svg until this point, I'll do it in the next few commits - it definitely exists, you'll find in on the glitterxperiments repo.