Lately I've been interested in sprucing up the site, so I looked into how I could edit the CSS and add my own styles/scripts if I wanted to.
As it turns out, the process is very easy, and if all you want to do is edit some CSS - you can get there in just a few seconds!
Step 1: Enter Edit mode for your site Step 2: Click 'Theme' in the top ribbon
Step 3: Click Edit HTML/CSS in the bottom left
Not bad. Now I have no excuse to not make the site prettier.