Resource icons are..
energy <- coal, wood, electricity, etc..
metal <- steel, aluminium, etc..
rare materials <-- rubber, suplhur, phosphates, etc.
oil <- aka fuel
supplies <-- same old.
money <-- its all about the dum-de-di-dum...
manpower <-- what you do not want to see at 0.
nukes <-- back to stone age!!!!
dissent <-- bad to have other than 0%
transport capacity <-- never ever ever go above capacity, or you can't supply yer troops.
IC <-- unused, available, base.