OK, I found it :blush:
It's a bit better, but it's not really a good solution.
I hope it's temporary?
This makes reading difficult but not impossible.
http://algadophoto.ch/divers/Capture...urButNotOK.JPG
Please: replace the NC with a silence symbol or make it invisible
https://cdn-icons-png.flaticon.com/512/599/599536.png