gtk-redshift(1) on Linux
The text e87d3c467383, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye) shipped it. The page shows this text now.
set color temperature of display according to time of day
Flags it lists
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-b -
-c -
-g -
-h -
-l -
-m -
-o -
-p -
-r -
-t -
-v -
-x