Tileproxy vs Megascenery

Here's a wide pic of TileProxy and Megascenery, where they meet at the edge of Vegas. In the top left I have inserted a mini screenie of the big screenie so you can see the demarcation line. Tileproxy is the darker, to the north.Christian, it would appear that the only real difference between Megascenery and Tile proxy (from Y) is the lighting (and the sea in other shots). Megascenery is way brighter making it look better. Is there a way for your little program to lighten the tiles as it processes them?