When I Import a multi-channel MIDI file and select "Single-channel items on multiple tracks":
-- the channel detail appears twice in the track name,
-- .mid is redundant in the track and clip names.
(see the 2 red tracks)
When I Import a multi-channel MIDI file, select "Multichannel item on a single e tracks", then Explode the clip:
-- the track names are all OK,
-- .mid is redundant in the clip names.
(see the 3 orange tracks)
PS I tried several layouts in the v5 Default theme but could not get any of them to display the track name fully, unless I made the TCP very very wide.