This is is the mode described as color-accurate here: http://www.displaymate.com/Galaxy_S4_ShootOut_1.htm
The Galaxy S4 Movie Mode provides very nice, pleasing, and accurate colors and picture quality
Movie Mode, Very Good Calibration
Very Good Images, Photos and Videos have very good color and accurate contrast
Based on those high precision measurements, I beg to differ. My rating would be poor or very poor.
Color manipulations are so wrongly done that some secondaries (cyan and yellow) are not even in line with primaries!
Well, this is an example of what happens when using not enough data to cherry-pick evidence that suit your established conclusion.
That's the reason why I'm committed to provide display analysis software and training to any reviewer interested.
The current source , considered as reference is not as good as it should, also possibly biased based on the fact its conclusions doesn't even match the data published.
Anyway. Yay, the new code works great 🙂