those are kid technical terms... i thought it was pretty good communication for a teenager...
sid meier's pirates is the game...
it seems that the ocean and the sky color shift randomly from light to dark, one color to another... not like gpu or memory oc stuff, but the whole part of the scene changes colors...
i've seen a few posts on other boards that the game is a bit buggy and there's supposed to be a patch (first one) coming out at some point...