Org-reveal comes with 11 themes:
You can specify one of these themes by adding this line to your org-mode file:
Sometimes, a theme is almost what you want but not quite, or you want to make a change just for one particular presentation.
Thankfully, the org-reveal authors thought of this and provide a way for you to add your own custom CSS without having to write a whole new theme.
Add a line like this to your org-mode file:
In this example, my custom CSS (
org-example.css) is in the same directory as my org-mode file, but relative paths also work.