d the color
model is considered to be the (yellow, cyan, cyan, magenta, 0, black)
tuple. This is what's rendered into the memory buffer. Finally, on
conversion to RGB for output, the colors are permuted back.

<p>
As such, this code should check that all imaging code paths are
64-bit clean. Additionally, it should find incorrect code that assumes
that the color model is one of DeviceGray, DeviceRGB, or DeviceCMYK.

<p>
Currently, the code has the limitation of 8-bit continuous tone
rendering only. An enhanc