Unexpected error while finalizing image

[hpohlmeyer]

I am trying to create a light/dark wallpaper with two solid colors. Both of my images are 1px × 1px, but during the image creating, I am getting the following error:

Reading JSON file: 'file:///Users/henno/Desktop/wallpapper.json'...OK.
Decoding JSON file...OK (2 pictures).
Reading image file: 'file:///Users/henno/Desktop/dark.png'...OK.
Adding image and metadata...OK.
Reading image file: 'file:///Users/henno/Desktop/light.png'...OK.
Adding image...OK.
Finalizing image container...Error: Unexpected error occurs: Image has not be finilized.

The console output for wallpapper looks like this:

Here are the png and json files: solid-color-wallpaper.zip

Versions:

• MacOS: 11.2.3
• Swift: 5.4
• Xcode: 12.5
• wallpapper: 1.7.1 (installed through brew)

[hpohlmeyer]

I have tried the same thing with two 5120×2880 pngs. That worked as expected. Is there any minimum image size constraint?

[mczachurski]

Hi, I don't know. Unfortunately Apple didn't provide any information about that macOS feature.