Those buttons which have
Example of such button can be find in your profile editor.
In usual state:
In hovered state:
Might want to use the same white text color on hover?
As this was completed (despite the fact the tag said deferred, I edited), the button, which was there earlier:
(sorry for the inappropriate freehand, that freehand was relevant to the linked request and I've lost the originals)
was removed. That's how this thing looks now:
Though, it's relevant to another buttons, which were reported recently .