Adding separate icon to sub-forums?

[adventureforum]

so just checked out this site(http://www.geyikler.net/forum/) from forums of the month and love the individual icons they have for each forum.

Any one know how to do it?

thanks:)

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sorry just found the mod, https://vborg.vbsupport.ru/showthread.php?t=235240
if anybody else is looking for it..