Background Color in Text Style does not work

For multi staved scores it happens that stavetext or dynamics collide
with unbroken barlines between the instrument groups. This is not very nice.
I think the best solution to cover the measure line at this place is

Go to text style - use frame option
- without lines (border thicknes =0)
- background color = white

Program let me choose the background color
-> but it was not saved and has no reaction in my score.