New Catalina 10.5 desk screen How does one change the new Catalina 10.5 desk screen/ wallpaper?  It is lonely, barren, ugly. Like a dragon.
Choose Apple menu   &gt; System Preferences.
Click Desktop &amp; Screen Saver.
From the Desktop pane, select a folder of images on the left, then click an image on the right to change your desktop picture.


In macOS Mojave or later, you can also choose from Dynamic Desktop images, which automatically change throughout the day based on the time of day in your location.