Updated the tutorial for easier readability.
I've just made new icons for some of my gallery folders and thought this might be useful for some of you. Both premium and non-premium members can use this feature.
You can use the example icon shapes as bases if you like.
If you create your own custom folder icons feel free to link to your gallery here so other people can be inspired by your awesome!
Live preview of the icons used in this tutorial: [link]