Active and Disabled State. The active state is when a button is ‘clickable’/’tappable’. While that may
sound a bit obvious, the important thing to note here is that a button can be disabled if the user
hasn’t completed the necessary steps.
Focus and Pressed State. The focus state is when the button has been tabbed to. The pressed state
is the state when the user’s cursor or finger is ‘holding down’ on the button.
