Radioactive Dark Theme. You need to have installed: UCCW. Custom launcher ( Nova/Apex/Go/Buzz etc. ). Video Tutorial. For Nova launcher users follow this: 1 - Clean all the icons of the page and set the wallpaper; 2 - Set grid size to 12x12 (some launchers the max is 10x10); 3 - Keep the task bar on but set it transparent; 4 - Remove the Dock and page indicator.