ximtool(1) on Linux
The text cf5d0b908fe2, as Debian 11 (Bullseye) shipped it.
interactive image display program for the X Window System
Flags it lists
-
-basePixel -
-cmap1 -
-cmap2 -
-cmapDir1 -
-cmapDir2 -
-cmapInitialize -
-cmapName -
-config -
-defgui -
-displayCoords -
-displayPanner -
-fifo -
-fifo_only -
-gui -
-help -
-imtoolrc -
-inet_only -
-invert -
-ismdev -
-maxColors -
-memModel -
-nframes -
-port -
-port_only -
-printConfig -
-tile -
-unix -
-unix_only