Questionmark in header instead of color dot

[tomasz90]

Describe the bug
Questionmark in header instead of color dot

Steps to reproduce

1. Open metamask
2. Add custom network like Polygon or BSC
3. Look at dropdown menu on header - questionmark is displayed on the left side of the network name

Expected behavior
At least white dot should be displayed as it is in opened drop down menu.
The best would be if user could specify that color when adding new network, this could be even specifying hex color codes.
This might be optional field with default color, if someone could have problem filling it. But when someone fill it then get desired color.
I tried to propose a solution, but unfortunately I have very little js knowledge and as I saw there is plenty code that probably should be change to store new varible.

Screenshots