Custom icons in pcmanfm

[titanicus]

Hi,
I've got a CAD application installed on ubuntu 11.10, and the .dwg file icons are generic. I would change them into a CAD similar icon, but I can't figure out how...

Does anybody can tell me where to change that setting?

Thanks.

[Rex Bouwense]

Under Customize Look and Feel there is an Icon Theme tab, however that merely changes the theme. You want to create your own Icon, so I don't think that will help. Wait one.

See if this site can help:
http://tiheum.deviantart.com/art/Faenza-Icons-173323228