The Bitwarden extension icon seems like an alien 
in the menu bar on Safari 15. Need add transparency to fit better with other icons
+1 on this. It’s not in keeping with the design of other extension icons for Safari 15.
+1, it continues to look completely out of place, even more so now that it uses the system accent color, which classes with Safari’s new system of adopting colours from the website you’re on. It being transparent like other extensions (WIPR, as an example), would make it look a lot better.
Same here, I need it out of the way to keep it streamlined with other extensions. Just grabs too much attention
EDIT: It does NOT use the system accent color, despite claims above. It perhaps does use the same as the default one, but if you have it changed (i.e. like to pink above), it won’t follow