Photoshop has changed its default look slightly over the years, but for the most part it’s been quite consistent: Toolbar on the left, options on the top, and a given set of panels (which used to be known as palettes) on the right. Despite the consistency, Adobe has added new ways to control and customize Photoshop’s interface with almost every new version. Why customize? Doing so can make the program faster and more efficient to use. It can render Photoshop more legible. And you can save variations on the interface for different tasks.