Convert CSS to Sass and extract color as variable.

I took the liberty to convert the CSS file you provide to Sass (and left the existing CSS file of course) because you casually mentioned that one could replace all the instances of the same color in the CSS to customize it.

That sounds like a perfect job for a configurable variable in Sass.

If you don't feel like adding the conversion from Sass to CSS to your flow, just close this otherwise I'm sure we can find a way to automate the process to compile to CSS.