Code review comment for lp:~mwhudson/loggerhead/unified-by-default-sbs-by-ajax

Hi Michael,
Thanks for keep on bringing awesomeness into loggerhead.

I have a few non-blocking comments and open questions:
* What about making the line number columns slightly tinted with red/green so you can link what they're related to better?
* I guess this means we're going back to unified as the default. Is that intentional?
* What do you think about moving the added/removed color explanations to the line below it, and maybe float:right?
* With big diffs, it makes the browser sweat quite a bit. Maybe we should not allow this madness with big-ish diffs?