Provided by: libgtk-3-bin_3.24.49-2ubuntu1_amd64 

NAME
gtk-query-settings - Utility to print name and value of all GtkSettings properties
SYNOPSIS
gtk-query-settings [PATTERN]
DESCRIPTION
gtk-query-settings prints both name and value of all properties available in the GtkSettings class.
Optionally, you can filter which properties to list by specifying a PATTERN.
GTK+ GTK-QUERY-SETTINGS(1)