Hey tribble. You wanted grey font. This works this way:
./bin/gtkclock --format=%H:%M --foreground=grey --background=white
What is the name of local screen of a GtkWindow?
(clock:1484): Gtk-WARNING **: gtk_migration not initialised yet
(clock:1484): Gtk-WARNING **: Screen for GtkWindow not set; you must always set
a screen for a GtkWindow before using the window
(clock:1484): Gdk-CRITICAL **: gdk_pango_context_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
when trying to give the GTK window a name.
This is the most interesting option:
--class=CLASS Program class as used by the window manager
Right now I have hard encoded in sourcecode that it should behave as "GDK_WINDOW_TYPE_HINT_DIALOG".