Reddit favorites coloring
This is a GreaseMonkey script that looks up your favorite subs on Reddit and colorizes the posts from them on your home page.
It turns something like this:
To something like this:
The prerequisite is a browser that supports installing the script. I use Firefox and the GreaseMonkey extension, but it should work on others, too. For instance, TamperMonkey on Chrome.
You can get it on Gist under Reddit favorites coloring. Just click "raw" button there and the browser extension should prompt you to install it.