xcmsdb is used to load, query, or remove Device Color Characterization data stored in properties on the root window of the screen as specified in section 7, Device Color Characterization, of the X11 Inter-Client Communication Conventions Manual (ICCCM). All questions regarding this software should be directed at the Xorg mailing list: https://lists.x.org/mailman/listinfo/xorg The primary development code repository can be found at: https://gitlab.freedesktop.org/xorg/app/xcmsdb Please submit bug reports and requests to merge patches there. For patch submission instructions, see: https://www.x.org/wiki/Development/Documentation/SubmittingPatches