You can create tiles, in several colours, in a map.
https://snap.berkeley.edu/snap/snap.html#present:Username=spaceelephant&ProjectName=tileset%20system
Isn't this basically my idea of a tileset engine, but more involved and difficult to do all the rendering code?
Tileset Platformer Engine: Tileset Platformer Engine
It looks a bit similar, but it also has tile properties, loading maps from a list, and scrolling. I guess it's still a ninja'd.
You're not the only person in the world to ever think of doing something like that, you know.
But my tileset engine does have scrolling capabilities. You see, the tile screen clears every render frame (Approximately 0.001 seconds) and so no tiles go off-screen and make the game lag.