studio.h -> gamma_magick

Pro Turm <[email protected]> Wed, 19 Feb 2020 15:09:52 +0100 (CET)

Newsgroups	gmane.comp.video.graphicsmagick.help
Message-ID	<[email protected]>

I coudnt define the reason for the following line of code:

studio.h -> #define gamma gamma_magick

What is gamma_magick supposed to be about?