Piggybacking onto this to mention my go-to online RegEx editor: RegExr. It lets you test the regex as you type, explains the particular symbols used, as well as has a sidebar where you can see different pattern types categorically. I’ve been using it for almost 2 years now, and haven’t had any reason to use much else (after I discovered this).
Ricing refers to modifying your system to make it look cool. The term comes from street racing, where it basically meant improving perceived performance using cosmetics like spoilers and hood ornaments and stuff. Mostly form over function.
Also, if you don’t mind visiting, you’ll see more of what I mean over here: