[Bug 41759] Re: "Alien Glow" effect crops too tightly

[Lapo Calamandrei]

The Alien Glow effect crop the image to the selected layer size. To
avoid cropping before applying alien glow make the layer you want the
effect to act on the same size as the image, to do this right click on
the layer in the layer pane and select "layer to image size".

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"Alien Glow" effect crops too tightly
https://launchpad.net/bugs/41759