| Option Category | # # CORE SCREEN OPTIONS # |
| Description | Contrast affects the amount of difference between black and white used by the screen. It affects only the systems's colours and if changed will increase / decrease brightness of the colours on the screen. Artwork and MAME's menus are not affected. You can use values from 0.1 up to 2.0. Values under 1.0 will darken the image and vice-versa. |
| Full Command | -contrast <float> |
| Alt. Command | none |
| Reverse Command | none |
| Example | mame64.exe pacman -contrast 1.25 |
| mame.ini Command | contrast |
| Command Default | 1.0 |
| Argument Format | <float> |