It is a poor quality picture, color picking the white on the pokeballs gets a desaturated blue. And while Fennekin looks more normal, it's actually rosy pink shades, no orange in sight. The color distortion towards blue gets worse the lower on the screen you go. Given the angle it's at this makes sense. That purple tail is by all odds just a blue hued red-orange tail.
Edit for emphasis: the purple tail is only a slightly more saturated version of the purple tainted white sections of pokeballs.
The Tales of series needs more love in America. Won't change sig until Namco gets wise. Started: 9/8/06