Updated satellite-drawing routine to use the new PNGWriter-class.
Updated satellite-drawing routine to use the new PNGWriter-class.

esampson/worldengine,MM1nd/worldengine,esampson/worldengine,MM1nd/worldengine,psi29a/worldengine,psi29a/worldengine,Mindwerks/worldengine,Mindwerks/worldengine