Provide :focus state for buttons

[Danielle Foré]

What it says on the tin

We also need to take into account "help" and "noundo" buttons

[Cassidy James Blaede (cassidyjames)]

Help, noundo, and the light decorated windows, yeah?

[Cassidy James Blaede (cassidyjames)]

Also, infobars?

[Cassidy James Blaede (cassidyjames)]

And then there are things like check boxes, radios, inputs...

[Cassidy James Blaede (cassidyjames)]

Okay, going to file separate bugs for each instance. I'm working on normal buttons right now. :)

[David Hsu (illusionmist62442)]

Since this is In Progress I'll just mention it here rather than filing a bug:

The focus ring should not apply to active (in pressed state) button.
I think 'active' is 'focus' enough, besides the ring looks kinda weird around pressed buttons and blurs the crisp border.
Otherwise you may want to improve the ring style with active buttons if it's gonna stay.

[Danielle Foré (danrabbit)]

I'm going to mark this bug as fixed since (regular) buttons do have focus states. We should file separate reports for the .content-view, .no-undo, etc buttons.