check it out---to mod that image you should not have to replace it after the patcher checks the files out. Just make an images/icons/ folder and drop your file in there. Works just like any modded xml file.
try this picture out....like i said put it in ui\mymods\images\icons
havent tested yet, cuz i dont feel like logging/tabbing out once i log in
and i figure youll get your answer faster this way anyway!
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Aluminum grinders