Highlighting a control
You can customize the appearance of a highlighted UI control object by editing an attribute of its corresponding control element in the controls.xml file.
About this task
A control is highlighted when a user places the mouse over it. Its appearance when highlighted is controlled by the highlight attribute in the controls.xml file. You can use this functionality to specify an image to be used for the control when it is highlighted. To do so, specify the desired image in the <highlight> tag within the control's definition in the controls.xml file.