Windowcase
Wood, marble and metal frames around your windows.
About Windowcase
Windowcase draws a textured border around each window, from walnut to carbon fibre, with a separate look for unfocused windows and automatic light and dark switching. It hides in Mission Control and full screen, and needs no Accessibility permission.
Questions about Windowcase
How much does Windowcase cost?
Windowcase is paid software, bought up front from cnyldz.com.
Where can I download Windowcase for Mac?
Download Windowcase from the developer's website (cnyldz.com). MacWorthy links only to official sources.
What are good alternatives to Windowcase?
Other windows & desktop apps for Mac worth a look are Hand Mirror (one-time purchase), Sticktop (one-time purchase), DynamicHorizon (one-time purchase) and Thaw (open source).
Other windows & desktop apps like Windowcase
Hand Mirror
Check your camera with one click.
Sticktop
Vinyl stickers for your desktop.
DynamicHorizon
Turns the notch into a Dynamic Island.
Thaw
A free menu bar manager for recent macOS.
Tuck
A quieter menu bar, with hidden icons a click away.
Rectangle
Window snapping with keyboard shortcuts.
Magnet
Snap windows into place by dragging.
Moom
Save and restore entire window layouts.