How to Always Show Window Title Proxy Icons on Mac
The Mac Finder and apps like Preview offer window title icons when you hover over the window title text, and once defaulted to show icons in the window title bar too. Sometimes these window icons were referred to as “proxy icons”, because they’re interactive and allow for things like dragging and dropping, and right-clicking to access dropdown menus.
In modern MacOS versions like Monterey, Big Sur, and newer, these window title icons still appear if you hover over the title bar texts, but you can enable a setting in System Preferences to always show the window title bar icons if you’d like.