Description
This option lets you set the gamma (brightness of the colours) of a full screen display.
Alternative Command
-fsg
Example
mame <gamename> -full_screen_gamma 1.1
Command Format
<gamename> -full_screen_gamma <value>. The example will boost the gamma by 10%. The highest setting is 2.0 and the lowest is 0.0.
MAME's Default Setting
1.0