I installed Ubuntu 12.10 via mini-iso, after that I installed xinit, xorg, fluxbox, xterm, pcmanfm , chromium-browser, lxappearance. There is for now one set of icons, in lxappearance I chose the icon set and applied but they don't show up in pcmanfm, there I see only text. How do I get pcmanfm to show foldericons?
Found the solution:
Make a textfile called .gtkrc-2.0 and put the following line in it:
gtk-icon-theme-name = "full icon theme name"
Save it in /home/username, and there will be icons!
For more configuration: