In Photoshop Elements, shapes are vector graphics, which means they are made up of lines and curves defined by their geometric characteristics instead of pixels. Vector graphics are resolution-independent—that is, they can be scaled to any size and printed at any resolution without losing detail or clarity. You can move, resize, or change them without losing the quality of the graphic. Because computer monitors display images on a pixel grid, vector data is displayed on-screen as pixels.
Shapes are created in shape layers. A shape layer can contain a single shape or multiple shapes, depending on the shape area option you select. You can choose to have more than one shape in a layer.
You can change the color of a shape by editing its fill layer and applying layer styles to it. Shape tools provide an easy way to create buttons, navigation bars, and other items used on web pages.