
The first step in making your dynamic desktop is acquiring the necessary images.
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This approach may provide much the same effect, but it has been available for many years-feel free to give it a try if you’re not yet running Mojave.) Building and Testing a Dynamic Desktop

(You may see tutorials for making dynamic desktops merely by putting photos in a folder, selecting that folder in System Preferences > Desktop & Screen Saver > Desktop > Folders, and then enabling the Change Picture checkbox and choosing an interval. GraphicConverter 10.6.5 is now available with this feature when running in Mojave. A beta of GraphicConverter arrived soon after, and we went back and forth a few times before he figured out both the image requirements and the necessary metadata to make it all work. When I pointed out that the Dynamic Desktop feature seemed to be a relatively simple collection of images, Thorsten promised to look into it more. Not just any expert, but the guru of image conversions and author of GraphicConverter, Thorsten Lemke. I played briefly with trying to duplicate Apple’s file and replace the images, but those experiments proved fruitless, so I turned to an expert. HEIC is the filename extension for High Efficiency Image File Format, which is an image container format-for more details, see Glenn Fleishman’s “ HEVC and HEIF Will Make Video and Photos More Efficient” (30 June 2017).

I double-clicked one and it opened in Preview, showing that the main HEIC file was, in fact, a container for 16 individual HEIC images. A quick trip to /Library/Desktop Pictures revealed that Mojave’s two dynamic desktops-called “Mojave” and “Solar Gradients”-were HEIC files instead of JPEGs.
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#1650: Cloud storage changes for Box, Dropbox, Google Drive, and OneDrive quirky printing problem.#1651: Dealing with leading zeroes in spreadsheet data, removing ad tracking from ckbk.
