Line Messenger - remove shadows? / Linux

[mjrec]

Hi,

I'm using the Windows Line Messenger with Linux, it's drawing some shadows on the screen which are on-top of everything does anyone know how I can disable those shadows?

I made a small video clip about it:
https://youtu.be/jTHhNMSl3UM

[mjrec]

oh what I can do is to open a white page, xwininfo to get the window ID of the shadow, and run

xdotool windowunmap windowid.

however I wonder if someone could point me to the place at the sourcecode where those windows are created so I can filter/hide them when Line is getting started.

[mjrec]

Another short term workaround:
xwininfo -root -children | grep 0x | grep line.exe | grep "has no name" | awk '{ print $1 }' | while read a; do xdotool windowunmap $a; done

this will unmap all the unnamed windows ... which seem to be shadows. It's better than having those shadows in front of everything.