Search: placement of gear button is misleading
The gear menu is part of the attached toolbar. This makes it look like the button is settings for each list row, when it's not - the contains settings that are used by Tracker.
My suggestion would be to move the button to the header bar, and rename it to something more informative (I've suggested "Search Locations" but we could possibly do better).
Original version of this report, from 2013: https://bugzilla.gnome.org/show_bug.cgi?id=704122