Image Frame With Box Shadow
The widget has a separate control for the bottom border so that it can be set wider than the other to make it look like a polaroid style photo.
The corners can be rounded if required and the box shadow radius set to zero if it isn't needed.
NOTE: As the borders and box shadow are added, the image will start to move out of the widget box to the right and downwards. This is due to the fact that that both the border & shadow are added to the image dimensions. To easily adjust the finished result, either check the box next to "Constrain Proportions in the Metrics inspector and drag or hold down the Shift key while dragging.