I had the same issue as the guys in this topic and there it is a piece of code that fixes the issue, but starts another one when having a pop-up windows (as this guy is explaining here) .
After playing a bit with the inspector I came up with a solution, I just wanted to share it in case somebody is going crazy like me:
I found the only difference between the 2 windows is the class is-popout-window , so I used that to apply different rules to it. Its seems pop out windows have an specific background that can’t be changed by any means and applying a transparent background on it makes it light grey.
Hello, thank you for posting this. However, I can’t seem to get it to work. I pasted it into my existing translucent script and even tried creating a new script and pasting it there, but I had no luck. I have zero knowledge of CSS, so if I’m doing something wrong, please forgive me. Do you know what the issue might be?