Nevermind; found the help I needed in a newer thread: http://www.s5themes.com/forums/topic/child-theme-changed-the-orange-color-in-light-orange-scheme-now-what/
Still need to redo all my theme option settings?? I’m going to play with the colours until I’m happy first, then fill in the details. I think that’s my one gripe; the theme options (logo, social links, all the homepage settings) are too easily lost and not saved. I guess I just need to be more diligent on backups!!