Hi,
Thanks for your information.
I just checked on Chrome, Incognito tab. I can see your changes in front end (red title…). But when I access to setting page, I do nothing and I see the colors like this. So I think at this moment if I just save the settings, all your changed colors will be reset to white. You do not have an issue with first time saving the settings. You will get issue when second time. (it does not keep the previous color changes).
Could you check it again quickly?
Best,