No support for color spaces
When I edit pictures in Photoshop, I tend to use ProPhoto RGB for the color space because it gives me the most latitude. If I export a JPG in this color space, Fracture displays it in terrible colors. If I export it to the color space it expects (sRGB), the colors are still completely off (just not as obviously off). This is any good if you do anything serious with pictures. Look for something which understands color.
Solid_liq about Fragment