When Dark or Light color scheme is selected, portlet configuration toolbars don't entirely disappear upon signing out of Liferay portal.
1) Log into Liferay portal under firstname.lastname@example.org
2) Add a couple portlets to main page
3) Go to Page (Manage Page)
4) Navigate to Look and Feel
5) Select Dark or Light color scheme, under Classic theme. Click save. (Both color schemes have this issue)
6) Exit Manage Page, refresh page
7) Sign out of Liferay