Perch v3.1.0
The tray icon is now optional
A new Tray icon item in the menu shows or hides the icon; the choice is remembered in HKCU\Software\Perch so it survives restarts. Default stays "shown", so nothing changes unless you turn it off.
You can never lock yourself out
Until now the menu was only reachable through the tray icon. The widget itself now answers a right-click with the very same menu, so hiding the tray icon still leaves you a way to dock, pin, quit or bring the icon back. While the tray icon is off, Hide to tray is greyed out, since that would hide the only remaining way in.
Also: the icon is re-added automatically if Explorer restarts.
Download
Perch.exe below is a single portable binary - no installer, no runtime dependency.