Umbra is a little menu bar app that lets you specify different desktop wallpapers for both light & dark appearances in macOS.
You can also switch between light & dark modes at any time by simply option clicking the Umbra icon in your menu bar.
In order for Umbra to update system settings, including the system appearance and desktop wallpaper, we need to request system event permissions from macOS. You can do this from the initial first-run screen when Umbra launches for the first time.
If you later revoke the permissions, or choose the wrong option in the system dialog initially, Umbra won't be able to request the permissions again.
To resolve this you can run the following 2 commands in your Terminal, which will reset Umbra. The next time you launch Umbra you'll be able to request permissions from the first run screen once again.
tccutil reset AppleEvents com.replay.Umbra
defaults delete com.replay.Umbra
Umbra handles setting wallpapers the same way macOS does. If you set an image as your wallpaper, and then move or rename the image, the next time you toggle system appearances we may not be able to display your wallpaper. Make sure when setting wallpapers that you're using images that are saved in a static location.
Note: The developer let's you choose the appropriate price for the software on the checkout page.
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