Hello, you can do this via CSS.
You can use a WordPress plugin called Yellow Pencil or CSS Editor. You can also use Rapid CSS if you are using Windows. It’s a program that needs to be installed.
Hope this helps.
I am acutally hoping (happy to pay) in time and when Marcel can that these options to change the colours, fonts, backgrounds etc can be built into the plugin so we don’t have to mess around with making these changes ourseleves in a CSS editior.