Kaybe icon "disappears" when there are unread messages

[oerp-odoo]

Describe the bug
Keybase icon "disappears", when you have unread messages. I guess it changes color that is exactly like top bar on Ubuntu, so it basically becomes invisible instead of seeing keybase with that orange dot.

Screenshots
This is how keybase looks without unread messages:

This is how it looks when there are unread messages:

Its hidden in dark background.

My OS:

Distributor ID: Ubuntu
Description: Ubuntu 20.04.6 LTS
Release: 20.04
Codename: focal

P.S. it used to show it properly, but after some change this started happening.

[oerp-odoo]

Please reopen it. Its not solved