How to add a stroke around an image

You can add a stroke around an image, which is a quite popular effect.

First, select the image by clicking on it with the "Move" tool, or clicking on the layer in the layers pannel.

Now, double-click on the center of the layer in the layers pannel.

When this window opens, click on the "Stroke" option.

Adjust the size and color values. You'll see the result in real-time. Once you're happy with it, click "OK".

That's it. If you want to adjust these settings again, double-click on the layer in the layers panel as shown above.