Would like to request SNES overlays that has a window size of 256x224 since most of snes roms is outputting this instead of the usual visible 240 vertical lines. the available snes overlays are good, but they are based of on 256x240. YES you can zoom in to fit its window size to the vieport size but the vertical borders will be cut off.
based on snes, dimensions is as follows for NTSC content:
width:256 height: 224 par: 8/7 aspect = width * par / height = 256 * 1.14 / 224 = 1.302857143
a general snes/super famicom themed and some game specific themed (currently playing CT to get achievements) on 16:9 ratio would be real nice.