> I percieve the stretcher-user's face as too greenish, too.
I have done a bit of measuring. You are right, there is a bit of green in the victims face. I am posting a screencopy of the face to show you what line I used to sample the colorvalues (red rectangle, pixels from right to left):
 
I first did measure the original png-picture.
 
<128, 128, 1>, <255, 255, 27>, <255, 255, 59> (9 pixels, same value)
 
Then I measured a screencopy of the png-file as displayed in Outlook express:
 
<117, 117, 1>, <255, 255, 20>, <255, 255, 49> (9 pixels, same value)
 
Conclusion: when >I< display the picture my gamma-correction seems to take out around 20% of the blue colour value. So I do perceive the yellow less green-ish than you do, probably.
 
I would be intesting to know what you measure.
 
Please do a really strong zoom on this picture to see what area I used - if you are interested in comparing the png-colour values to screencopy values on your computer at all.
 
 
I never thought about this, but obviously every time you do a screencopy and save the picture, gamma-correction alters the colours. Makes perfect sense when you think about it - but I have to say I never thought about this fact at all.