The Tracks section displays the underlying streams of the media item and their details:
The Tracks Section
Clicking on Select Symbol allows you to choose a channel order for your audio tracks to associate them to the tracks for use in future operations, such as transmuxing, transcoding etc.
Clicking on a video track allows you to set its color properties in the Edit Video Track dialog.
The Edit Video Track Dialog - Color Space Tab
The Edit Video Track Dialog - Mastering Display Tab
See Also