GPHIGS-GUI toolkit may be configured with a resource file when used from Motif. An example of a configuration file is given in GPHIGS_GUI / demo_files (XGphigsgui)
Example :
*fontUser: 6x13
*deviceWs: 7177
*background: LightGray
*foreground: black
This file will be included during toolkit initialisation. Example :
toplevel = XtInitialize ("test", "XGphigsgui", NULL, 0, &ac, NULL);