From the GConf key description:
The window focus mode indicates how windows are activated. It has three possible values; "click" means windows must be clicked in order to focus them, "sloppy" means windows are focused when the mouse enters the window, and "mouse" means windows are focused when the mouse enters the window and unfocused when the mouse leaves the window.
When I configure
focus_mode using gconf-editor,
/apps/metacity/general/focus_mode, I can't tell the difference between
When I set this key as
mouse, the focus is still on that window if I hover the cursor to the background.