I think it's using the icon for the dark theme. It's supposed to use the dark or light one
Temporary Containers Version: 1.9.2
Firefox Version: 115.9.1esr (64-bit)
Actual behavior
Icon is light on light background
Expected behavior
Icon should be dark on light background
Steps to reproduce
set theme to "System theme -- auto"
look at the tab bar icon
Notes
This is entirely solved by using either System theme light or dark explicitly. I assume the right color exists as a css variable with the firefox shell, but I have no experience inspecting that.
I think it's using the icon for the dark theme. It's supposed to use the dark or light one
Actual behavior
Icon is light on light background
Expected behavior
Icon should be dark on light background
Steps to reproduce
Notes
This is entirely solved by using either System theme light or dark explicitly. I assume the right color exists as a css variable with the firefox shell, but I have no experience inspecting that.