You know what would be totally AWESOME? A map editor. When you load your game, there should be a 'map editor' and then you can load amap or make a new one. You'll be able to add scenery stuff and choose the path type 'stone, dirt, etc.' and choose what gems can be created and what's in your inventory... and I'm saying too much. That's a GREAT idea.
 "GemCraft Labyrinth"){kind=icon}
 "GemCraft chapter 0"){kind=icon}
 "Platform Racing 2"){kind=icon}