Thanks for your help, but I’ve tried everything I can think of and I couldn’t get this to work. When I activated the child theme it completely destroyed all the formatting on the site, when I activated the normal theme the color changes didn’t stick.
I ended up downloading the bootstrap.css file from the wordpress file manager, replaced all the references to the color I wanted changed and uploaded the changed file, and it worked. Would have saved me hours of frustration if I’d thought of this earlier.
Having said that, I really do appreciate your attempt to help, and thank you very very much for providing such an excellent theme. I’ve given it a 5 star rating because it is definitely the best theme I’ve come across so far.