What are slide-out button bars?
Just about what they sound like. You press a button, and they scroll outwards much like a sliding drawer would, and presents a number of other buttons for you to choose from. This is a useful feature if a theme design or border style wants a minimal amount of buttons always shown, or if the window border is shrunk to a point where only one button is normally visible. The buttons that slide out can be otherwise hidden buttons. The speed of the scroll action can be user defined.
