very observant. you are probably right. i wanted to keep it structually to be the 'default' theme because it's quite different than normal themes (more like the 'fallback'-theme), but still wanted it to be called OpenProject in the UI or when talking about it. I see a point for confusion here so it's probably best to keep calling it 'Default' or to change the class to OpenProjectTheme and rename the corresponding css file and subfolder name. what do you suggest?