BG-non is a setting with no background for Powder Game, Elemental Box, Earth Editor, and Powder Game 2. The only thing shown on the screen are the blocks, elements, and objects, with no special effect. No air/wind display or background effects are shown in any way. It is the most simple background for Powder Game. Oddly, it was not the first BG, or packaged with the first version. (Line was the only BG up to ver2.3.)