PSD rendered with -compositeCIImage looks different than in Acorn

[chbeer]

The Document iPhone_5_Vertical_sRGB_0912.psd which can be found here: https://developer.apple.com/appstore/resources/marketing/index.html#agreement (login required)

looks like this in Acorn:

and like this when rendered using -compositeCIImage:

Note the gloss in the upper right corner.

It would be awesome if it would look the same.