Works with HTML code, great support

It didn’t work out as easily as I had expected. Some theme providers do everything to prevent you from deleting their credits. With some quick and competent support, and some careful copy/paste experiments, it finally worked.

Just deleting the footer text would have been much easier by adding a little piece of code in the customizer/footer section. But since I also wanted to add something new to the footer, this worked perfectly for me.