Umbra

What is Umbra?

Umbra is a native macOS utility that helps you manage system appearance and desktop wallpapers from the menu bar. It is designed for Mac users who regularly switch between light and dark mode and want their desktop background to change with that choice. The app lets you assign separate wallpapers for each appearance, trigger appearance changes quickly, and work with multiple displays. It also includes wallpaper browsing and selection tools, including support for images from Unsplash and common desktop image formats. Umbra is published by Replay Software Limited and is intended as a focused desktop customization tool for everyday Mac workflows.

Key features

• Toggle light and dark mode from the menu bar
• Set different wallpapers for light and dark appearance
• Choose separate wallpapers for multiple displays
• Browse and apply desktop images from Unsplash
• Use common image formats including JPG, PNG, HEIC, and PSD
• Set a keyboard shortcut to switch appearance quickly

Safety overview

Status: Mostly safe

Umbra is a legitimate desktop customization app for macOS. To change appearance settings and wallpapers automatically, it may request normal macOS permissions related to controlling system settings. That access is expected for its purpose, but users should still grant only the permissions they are comfortable with. Removing the app can stop automatic wallpaper and appearance changes, and resetting it may remove saved wallpaper choices.

Recommendation: Keep Umbra if you use it to manage dark mode and wallpaper changes from the menu bar. If you no longer use those customization features, you can remove it without affecting macOS beyond losing Umbra's shortcuts, settings, and automatic wallpaper behavior.

Common paths

• /Applications/Umbra.app

Preference paths

• ~/Library/Preferences/com.replay.Umbra.plist

Related apps

• Sleeve
• Echo

Related can I delete pages

• ~/Library/Preferences/com.replay.Umbra.plist

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