The sliders use the same radial brushed metal texture as the horizon adjustment line from earlier. We love it, but can’t help but feel like its use in the horizon line diminishes the power of this signifier. Across iOS 6, this texture means “knob for a slider.” But on that line, it’s just a button you can tap — you can’t drag it around.
Beyond the sliders, there’s also a slide gesture you can perform on the image viewer. I like what this was going for, but honestly, I could never intuitively remember which direction controls which.