As of version 3.0.5864 (the newest 3.0.5874 shows an error message during installation) there are some translation remarks:
Not translatable:
Preferences - Layout (1) - Checkbox "show icons"
Preferences - Layout (2) - compact player / Configure Panel - Checkbox "playlist"
Translations not recognized:
#PLE.ctl.952C9FA8# Configure Expanded Panel
#NPL.ctl.C7DF22A3# Configure Custom Links
#MEX.msg.AlbAndSta# Albums & Stats (Musik-Explorer - in header bar only, in menu it's fine)
Music Bee Panels Configuration:
Not enough space for the red marked text (see picture below)
For the green marked text (see below), I suggest to top align the text to the checkbox, so that it is better visible to which checkbox the first line belongs
Different setting panels (just a few examples marked below):
Some titles are truncated by one or two letters (in 2.5 the same text - if already existed - was no problem)