An apparatus reduces color fringing in a color image, so that a post-processed color image is positioned in a restricted area in a chromaticity diagram. The pair of first regions overlap with the pair of electrodes, the third region overlaps with the gate electrode, and the pair of second regions are formed between the pair of first regions and the third region. Also disclosed are families of alloys capable of forming crack-free weld overlays after multiple welding passes. When used in vivo, the compositions are useful for controlled release drug delivery, for inhibiting post-surgical spinal and other tissue adhesions, for filling tissue divots, tissue tracts, body cavities, surgical defects, and the like.