This of course can vary with your monitor, PC and GPU settings. I compared the v5.0.0.2 images with those from PowerDVD 17 and found that on my PC, the Gamma was too high and the contrast too low from Fab Player 5, but it can easily be customized from the playback context menu shown below and is essentially a one-time adjustment.

signals
Hi.
As mentioned, I cannot replicate the color from Movies & TV app in DVDFab using just the Color Adjust. Also, the Saturation slider somehow doesn't work at all.
Strangely enough, this only happens when I connect my PC to TV. When using monitor, all media players output the same greenish image. So this could be the problem with different display devices like you said.