Editing WoW:XML/Button (section)

=== States ===
Button is one of the most complex and confusing types, and probably the most important from a UI perspective for user interaction. Each button has 'states' where each state depends on mouse interaction in order to give feedback to the user about what it being or going to be clicked on. 'Normal' state is the button at rest and how its normally drawn. 'Highlight' is the state when a user hovers over the button with the mouse. 'Pushed' is the state when the mouse button is held down. And 'Disabled' is the state where a button shows its disabled and cannot be clicked. Settings defined for the 'Normal' state will be used for other states if those states settings aren't set.