Stuf unitframes-modify rested,combat,afk icons

[deemaxm]

How can i change the look of icons like : rested, combat, lootmaster etc. on unitframes using Stuf?? I searched icons.lua in Stuf folder and found this:

elseif uf.cache.incombat then  -- in combat
			SetIconCoord(f, 3, "Interface\\CharacterFrame\\UI-StateIcon", 0.5625, 0.9, 0.08, 0.4375)
		elseif unit == "player" and IsResting() then  -- player resting
			SetIconCoord(f, 4, "Interface\\CharacterFrame\\UI-StateIcon", 0.0625, 0.4375, 0.0625, 0.4375)
		elseif f.pstat then  -- none
			f:Hide()
			f.pstat = nil
		end

So i was looking for the path shown there : "Interface\\CharacterFrame\\UI-StateIcon" but unfortunatly i dont have somethink in my wow folder.
So can anyone explain me where i can find the .tga's of that icons so i can modify them. I saw some similar modifications on RealUi.