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