Why rendering gets a faded color video? I am using blender 2.8, system Ubuntu
Here is the video codec of source file H264, MPEG-4 AVC
Frame rate 24  

In blender, I set the output as
File format FFmpeg video
Encoding Container MPEG-4
Video codec H.264
Output Quality: High Quality  

Why the video gets faded, or a dark shadow is formed after rendering?   

Original video screenshot (screencast using Kazam):


Screenshot of video rendered by blender:


I also tried many other settings like AVI, but all are giving the same results.
The settings for the color management don't match with the color space for the images used. 

If the colorspace for the original images is sRGB then set the View transform for sRGB (or "standard")

Read the following link:

Blender image output gets greyish touch