Important before you start.

This action only works with the English version of Photoshop. You can change to the English version and go back to your native language once you're done. Watch this video for instructions.

For best results your image should be:

How to Install the Photoshop Action

Double click on the .atn file to install the action automatically.

Or go to the actions window, click on the top-right arrow, select "Load Actions..." and search for the ATN file which came with the download.

How to use the Photoshop Action

Open your image inside Photoshop.

Your image should be set as "background" with a lock symbol next to it.

If this is not the case: select the layer inside the layer window and go to the menu "layer/New/Layer from Background..."

Draw a Shape with the shape tool (Keyboard shortcut "U"). I experienced the best results when the shape was placed in the middle.

Rename this new shape layer to "shape". You can also draw multiple shapes and merge the layers together for a more complex result.

Now locate the Photoshop Action in the Actions Window and press play.

Reset your Photoshop preferences if you're experiencing any errors.