buttonLockup
Creates a button that can also have a badge associated with it.
Overview
Images on buttons are often used to indicate the function of the button. Use the buttonLockup element to add a badge to the the button. Here’s an example that shows a button with the preview icon and a title.
<buttonLockup>
<badge src="resource://button-preview" />
<title>Preview</title>
</buttonLockup>