How Do I Do That in Photoshop?

Put a Stroke Around Something on My Layer?

There are two ways: The way I most often do it is to go to the Layers panel, press-and-hold the Command (PC: Ctrl) key, and click directly on the layer’s thumbnail. This puts a selection around anything on that layer. Once that selection is in place, I go under the Edit menu and choose Stroke. This brings up the Stroke dialog (seen above left) that lets you choose how thick you want this stroke, the color, and the location of where you want it placed (I normally choose Center, so the stroke is half outside ...