FULL PRODUCT VERSION :
java version "1.8.0_111"
Java(TM) SE Runtime Environment (build 1.8.0_111-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.111-b14, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 10.0.14393]

EXTRA RELEVANT SYSTEM CONFIGURATION :
Video: .flv transparent video;

A DESCRIPTION OF THE PROBLEM :
When using MediaView to play a .flv transparent video with gradient alpha, a darken background shows.

Suspicious cause maybe the Blend mode interact between the MediaView and the background.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Provide a transparent video with gradient alpha color;
Place it in a MeidaView
Place the MeidaView on top of a light color background pane
Then play the video;

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Expected Result

http://pm.grainandpixel.com.hk/activeCollab/public/index.php?path_info=s%2Ffiles%2FHLfu8m6DwokLH
ACTUAL -
Actual result reference

http://pm.grainandpixel.com.hk/activeCollab/public/index.php?path_info=s%2Ffiles%2FSgozfeCvUcaNk

REPRODUCIBILITY :
This bug can be reproduced always.