MKVToolNix GUI: multiplexer: the GUI will now check the state of the 'track enabled' flag of all video, audio & subtitle tracks when starting to multiplex or adding a job to the job queue.
Only affects new installations, or when the user presses the "reset to default colors" button.
MKVToolNix GUI: multiplexer: the default list colors used for distinguishing source files does not include the darkest tier anymore (the ones where one or two components are set to the value 0x3f) as they're hard to distinguish from each other.
Note that this doesn't affect file identification. Tracks of the same type will be sorted in the same order as their source files occur in the command-line arguments. The order is as follows: video tracks first followed by audio & subtitle tracks with other rarely used types of tracks last.
mkvmerge: tracks in the destination file will now be sorted by their type automatically unless the track order is specified with the `-track-order` option.