I’ve been working on a userstyle to add some Metro to Reddit. The idea came from the r/Microsoft subreddit, and uses some code from r/Microsofttest2. I haven’t spent extensive time on it, so I can’t say it’ll be perfect, but here goes anyway (make sure to turn off subreddit styling, as that might mess with the userstyle). Just post this in a new blank Stylish (Firefox or Chrome addon) script:

Here’s a pastebin version of the code.