Collection of Useful GTK Settings
From ArchWiki
The purpose of this page is to collect GTK configuration settings which can e.g. be used within ~/.gtkrc-2.0.
[edit] Enabling Customizable Keyboard Shortcuts
You can customize your GTK applications' keyboard shortcuts (those are called accelerators in GTK terminology) by hovering your mouse over a menu item and pressing your desired key combination. However, this feature is disabled by default. To enable it, set
gtk-can-change-accels = 1