My very own beta version, thats cool
Bad sadly not exactly what I was looking for.
Lets try to make this clear:
Version 1.28, clear fill color:
Expecting this result for: only for white fill color (which currently produces the same result as clear fill color)
Version 1.28.2_beta, clear fill color, solid connector labels deactivated:
Expecting this result for: clear fill color, solid connector labels activated
What I was expecting for: clear fill color, solid connector labels deactivated:
But of course that are just my personal expectations for the behavior.
Edit: A different possibility would be to ignore the solid box just for whitespaces and linebreaks in one text. This way the line would be visible while formatting the text, and the letters itself would still be easy to read, because they have this little margin to the line. But i guess this could be a little hard to implement. If needed i can make a screenshot of this, too.