!flip flips the screen upside-down
!mirror mirrors the screen
!invert all colors and values are flipped
!bl changes the blacklevel, higher is more black, between 0 and 1, default = 0
!bri higher is brighter, default = 1
!gamma how smoothly white turns to black, default = 1
!contrast makes lighter parts lighter and darker parts darker, default = 1
!hue rotate the hue(color) around the colorwheel by a number of degrees, default = 0
!hue rotate rotate the hue a number of degrees per second (rotating rainbow) 10 is slow, 100 is fast
!sat control how colorful the colors are. default = 1, black and white = 0
!val higher is brighter, default = 1
!red/!blue/!green multiplies the color channel by an amount, default = 1
!walk move the screen by a percentage per second, default = 0
!stretch stretch the screen, default = 1
!rotate rotate the screen by a number of degrees, default = 0
!rotate rate rotate the screen by a number of degrees per second, default = 0
!hud <on/off> turns the header and footer text on and off
!reset fixes everything you messed up :)