grabc identifies colors incorrectly

[vaygr]

I'm running Vivaldi 3.3, and wherever on the window I try to use grabc, it always gives me color #170000.

GTK-based color pickers, e.g. colorpicker reports color value correctly.

Is it a known issue?

[veilm]

With Brave, I'm getting #080000 every time

[ringofyre]

It might be a chromium thing - on any other window or area on the desktop it works perfectly. Anywhere on chromium

Version 118.0.5993.70 (Official Build) built on Debian trixie/sid, running on Debian kali-rolling (64-bit)
it reports #000000