NCF – Extended list of Neutral creatures.

Funny, I also couldn't open the manual the first time I tried to figure it out, I thought it was some kind of useless thing – an unfamiliar format, it opens in Explorer XD. I haven't dealt with alpha and other things, I create icons in Paint.net, the process is similar: 1) I combine the icon, cut out a square, remove the background. By the way, a pink background is good, but I take screenshots at the edge of the map and crop the sky. 2) I reduce it to 256 pixels. 3) I create a copy of the layer – now we have 2 identical icons on top of each other, the bottom one needs to be processed through "hue" and "saturation" – it should become super black. 4) I blur the black layer with a Gaussian blur of 3 pixels, copy it, and merge it until the transparency disappears – a black outline of 3 or 4 pixels appears around the icon without an alpha channel. 5) I merge the layers and reduce the image to 128 pixels, draw an outline around the edge – and it's ready.