Hi thanks for the info
Think Joomla 4 (4.1.5) now running bootstrap 5, sing Cassiopeia
Even without CB (Twitter Bootstrap) activated, still the same, the Show greeting do not adapt to background, it's kept in black.
Wanted a lean top, having the logout button side by side to horizontal Menu and at side of button the Hi xxxx
anyway
I had a Topbar with logo / name adn instead added the user formatted here with a PHP in a module using Sourcere