Recently I started playing more LN maps like Happy Synthesizer mapped by C36098651, Electric Angel mapped by [13] BECK, and recently AiAe [LN] mapped by -Kamikaze-. Also the skin recently got a nice feature where the hold notes stick to the judgment line when held. So I thought, why not have a mod which inverts the map's notes? All blank spaces would become notes and all notes would become blank spaces. Just like the hardrock mod, I don't think it should be a rank enabled mod, but it would generate maps that are good to practice. What do you think guys, good idea or no?