Clean up styles

I've begun the work of making the implementation of style methods more uniform and correct, but this got to be so big that I decided to stop half-way.

This PR will represent "cleaning up" `arc` - `list_box` (using the list in #711).

I'll make lots of inline comments on what I considered "cleaning" and I'm eager to hear feedback.
Firstly I'm adding `common_styles` to all of the `style_with` lists. I'll need to do the plumbing to hook these up to their actual implementations (hidden, displace etc), but that's later.