I am trying to override the default wireframe theme, don't know if that's even possible. If it is, I am doing something wrong...
Copied the theme from com_easydiscuss/themes/wireframe/categories to MyTemplate/html/com_easydiscuss/themes/wireframe/categories.
I assume it's possible to change the theme files, otherwise you are pretty much never able to customize the design without overriding easydicuss core files...