Conflicting instructions on creating a new theme
This page says copy and rename the default theme folder, then "create a custom.css file in the /design folder of your custom theme".
Whereas the readme.txt file in the default theme folder says "Create a /design subfolder and copy /applications/dashboard/design/style.css and /applications/vanilla/design/vanilla.css into it"
I'm not posting this here to ask which instructions are right (they probably both work), but I'm posting this here to say that it's confusing to find conflicting instructions like this, both of which are seemingly the official source. I followed the first set of instructions the first time, then on my next install I found the second instructions and was sure this wasn't what I'd done before...