heeya, i have downloaded and installed the magazine theme.

heeya,

i have downloaded and installed the magazine theme. the themes come with a pre made child theme. But my question which child theme should i copy/paste to my theme's folder, and which style.css do i need to use.

I have some experience with wordpress, but i couldn't even figure out how to change the background this time XD

at the moment, i installed the whole theme in my themes folder. within the parent theme there is another folder named themes, with the child theme.
I copy paste that child theme to the main themes folder.
after that i logged wordpress, and activated the child theme.

Then in apperance --> theme options: i change the background. And it keeps the background of the preset style theme (blue)
and when i try to change it in the child theme css, also nothing happens. everything is over ruled by the preset style css's.
thanks,
kevin