Screen Veil Basic is installed

1. Screen Veil Basic opens by itself and shows its settings. It lives in the menu bar (the crossed-out eye) and has no Dock icon.
2. Click the floating round button (or the menu bar icon, or press ⌃⌥⌘N) to blur every screen.
3. Click it again to show them. There is a button on each screen: drag one to move it; right-click it for the menu.

It opens at login from now on (Settings › General › Open at login). Settings › Support shows how to support KHBROS and what Screen Veil ADVANCED adds.