I love this! I didn't know I needed this until I saw it. It was a breeze to set up and be up and running. One small question: does anyone know how to add a col

I love this! I didn't know I needed this until I saw it. It was a breeze to set up and be up and running. One small question: does anyone know how to add a color background to a slide (as in the example provided) - is it done with CSS?