The new icon for pinned tabs without favicons is unreadable with dark theme
!286 (merged) added an icon for the pinned tabs without favicons, but with a dark GTK theme the icon is unreadable (the pinned tab in the left):
!286 (merged) added an icon for the pinned tabs without favicons, but with a dark GTK theme the icon is unreadable (the pinned tab in the left):