I'd like to request that the color of block quotes gets changed from a light gray to a light yellow (like SO, AE)
As it is now, it's very hard to see the difference between a block quote and a code block.
My answer to this post is a perfect example: Customize ubuntu (change logo and startup app)
Edit to address dupe marking:
Yes, it is a duplicate, but nothing came of it. So I'm bringing it up again.