display-trueemu : Emulate truecolor modes
display-trueemu : [-parent=<mode>] [-dither=<dither>] [-model=<model>] <target-spec>
Emulates truecolor modes (GT_TRUECOLOR) on another target which can only do palette modes or truecolor modes of different sizes/depths. Uses dithering and special palettes to get the highest possible quality.
Force the parent target to use a specific mode, specified as a standard LibGGI mode string (see libggi(7)).
Specifies the target which to draw on (the parent target). This defaults to automatic selection (just like using ggiOpen(NULL) when GGI_DISPLAY is not set).