So I have a image, it's called picture.png

I want to make a med, and lrg version of it so i make to more files name them picture_MED.png, picture_LRG.png and put them into the same folder as picture.png... That doesnt work it just comes up as additional images... then I try to make a large folder and a medium folder, the images wont even show up. What am I doing wrong!

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