Assigning a color to a layer makes it easier to distinguish the layers of different selected objects. For each layer that contains a selected object, the Layers panel displays a dot in the layer’s color. On the page, each object displays the color of its layer in its selection handles, bounding box, text ports, text wrap boundary (if used), frame edges (including the X displayed by an empty graphics frame), and hidden characters. The layer color does not appear for an deselected frame if its edges are hidden.