Hi Lindsay,
If you do not get a reply from this thread (well, a real reply), then it might be a good idea to start a new thread. You can always post a link back to this one for reference.
Also, can you post the code you wrote to change this color? That might help others to give a more direct answer. (I know you posted your github link, but just a quick couple of lines in the post might help so others won't have to dig through too much).