6 If you now display the Layers palette you will see the custom Shape has appeared as a new layer with two icons. The left one is the adjustment mode which in this case is a white colour. Clicking here allows you to change the colour, but we don't need to. The right hand icon is a mask. Areas in grey are masked so the layer below is not affected. Areas in white allow the upper layer to show to the bottom one giving us the white heart.
7 Right click on the Shape1 icon and choose Select Layer Transparency. This places a selection around the white heart shape.
8 Now press the delete key or backspace to remove the white leaving just the selection. Notice the shape layer has gone and the selection is now on the background layer.
9 Create a new layer by clicking on the Create a new Layer icon at the bottom of the layers palette.
9 Go to the Select menu and choose Inverse to change the selection from the heart to the background.
10 To avoid a hard edged vignette we will soften the edge using the Feather tool. This is accessed from the Select menu and allows you to vary the softness by entering the Feather Radius. The setting is a matter of preference but as a starting point set a value to 1% of the width of your picture (in our case 10 pixels)