I was wondering about that change as well, and thought it might be something to do with building or scaling the image. It's relatively minor, but I prefer the old method as well.
And I know it's been discussed in another thread, but I would also prefer the style of the icons in the previous build. I'm all for the 'new' look usually, but feel that going to the current icons and color scheme looks like a step backwards, instead of forward.
Otherwise, awesome job with the new build and features - Camera Bits is continually innovating and does an INCREDIBLE job with Photo Mechanic!