A DVD or Blu‑ray Disc player uses button subpictures to highlight buttons. A button subpicture defines the appearance of a button when it’s selected, activated, or in its normal (unselected) state. All the predesigned buttons included with Encore come with button subpictures. Encore can create subpictures for a button and update the text in the button subpictures automatically any time you change the text on the button. For full control over the design of button subpictures, you can create them in Photoshop. (See Create subpictures in Photoshop.)
You can create button subpictures from predesigned buttons in the Library panel, the Object > Create Subpicture command, or by designing new in Photoshop. Regardless of how you create your button subpictures, you set the colors used for button subpictures in the Color Set dialog box.