Is it possible to override SASS variables?

[YPCrumble]

First, thanks for creating this really nice forum! I'm looking into using this as the base of a forum for https://bookclubz.com.

One quick question - is there an easy way to override Sass variables? Is forking the repo the best way to do this or is there another option that includes re-compiling to CSS using overridden variables?

I suppose I could fork the project and override these manually, but curious as to whether it's possible in another way. Also happy to add documentation for that if it would be helpful!