Now you can install the icons in a few minutes. With this plugin you can:

a set of images for a forum node, page, link, or category

set font high icon for forum node, page, link or category
set width for icon
enable/disable animation effect for new icons
enable/disable border for icon image
enable/disable border radius for icon image
set border color
set font awesome icon image in the same node!

Last update:
List of icons on the forum list panel
two types of icons (for dark and light themes)
some minor fixes