Custom wallpaper color shows as white on my Mac mini after macOS 15.4 update

I have a custom color for my wallpaper. After updating to Mac OS 15.4 any custom wallpaper color shows as white. I can choose a photo. I can choose a custom color. Those work. But if I choose a custom color, white. How does such an obvious bug make it through your quality assurance and beta without being fixed?

[Re-Titled by Moderator]

Mac mini, macOS 15.4

Posted on Mar 31, 2025 1:47 PM

Top-ranking reply

Kurt Lang

Level 9

68,520 points

Posted on Mar 31, 2025 2:33 PM

Got around it by cheating a bit. My custom color was just a gray tint with RGB values of 153, 153, 153. So I created a 10x10 pixel, 16 bit PNG image and put it in my user account Pictures folder. Chose that as my wallpaper and it's back to "normal".

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16 replies

Apr 16, 2025 4:12 PM in response to Kurt Lang

Yes it is!

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Custom wallpaper color shows as white on my Mac mini after macOS 15.4 update

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