A few days ago I came across Henry Wang❜s ❝ggplot2 Theme Elements Demonstration❞ on Twitter and thought it was such a smart way to refer to the theme elements in ggplot2 (check it out if you haven't already!). Since I always customize my plots, every time I make one I end up having to google the list of theme elements. In an attempt to minimize the time spent doing that, I decided to make my own version of Henry's demonstration for myself, using the theme elements I frequently use and tweak.
I also made a PDF version so that it's easy to copy-paste the code. Feel free to download it or the PNG version from this repository or my website.
I included a part in the sheet where I said ❝Set minimal as the baseline theme❞ since I always do this, but of course that's just my personal workflow.
There are many more theme elements that you can set and inheritances available, so be sure to check them out in ggplot2's documentation!