Not sure exactly..
Under the
Loadscreens the values affect the positioning of the load screens.
The first screen (tx,ty) is when you start the game, the second (sx,sy) when you start a mission. I never managed to move the second screen red progress bar downwards, but then I never looked at this - I think it's in the
menu.ini file.
maxscale, I take as full-screen resolution.
The
EFFECTS, I have no idea as I didn't touch this.