This behavior can be turned off in the preferences. If there’s no track with its flag turned on for a type, the GUI will turn on the flag for the first track of the type.

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.Here are the NEWS since the previous release: New features and enhancements

The other Linux binaries are still being built and will be available over the course of the next couple of hours. The Windows and macOS binaries as well as the Linux AppImage are available already. You can download the source code or one of the binaries.

Additionally mkvmerge will now sort tracks by their type by default! So why not do another MKVToolNix release today? 😁 This release mostly fixes the messy situation with the dark application mode on Windows among a lot of other things. It’s nearly summer & the weather’s nice where I live.

Download mkvtoolnix 7.7.0