You don't actually specify the ini file in the pediaicons file. The units are all specified in two sections. The first is the part that gives the icons, which is the part you mention. The second is the part that gives the animation. They are all listed as ANIMNAME_PRTO_Whatever and under that is simply a name. This is the name of the folder within the Units folder that contains the flcs for that unit. It also specifies the ini file, because the ini file by definition must be in that folder and have exactly the same name. So if you are calling the folder Liche Priest, this is all you need to put under the ANIMNAME_PRTO_Whatever and then you need to check that the ini file has exactly the same name, that is, Liche Priest with a space.