The boxes on that screen don't correspond exactly to the tracks in a MIDI file.
To see this in action, load any "Format 0" MIDI file (which only has one track by definition) and on that screen you'll see all of the instruments and channels broken out into their own boxes.
While Synthesia never collapses more than one track into a single box, it certainly has a tendency to explode a single track into many of those boxes. So you could end up with a screen full of "Track 1" boxes repeated a dozen times. I guess that could still be marginally useful. We recently added the Channel listing to give people that send their output to their DAW an easier time of configuring things on both sides.
For your use-case of "finding the track they wanted to edit", something like Sekaiju has a track listing very much like Synthesia, but it keeps them in the correct order and doesn't manipulate them as roughly as Synthesia does. The better answer might be to simply open the song in an editor like that one.
But what if someone wants to change the color of a track? We can't do that through Sekaiju.
Also, you could add an hidden setting in the configurator, to allow advanced users to enable this feature when needed. That would save normal users from useless text they don't need.
Well, the boxes are sorted by pitch (higher pitches at the top-right) and there are preview buttons that let you listen to them right on that screen. With all of the other information (channel and instrument), is it that hard to find the track you're looking for?
