Spotlight fails to index the content of text files starting with odd characters like ‘LG’ and ‘Draw’, Although we understand this is caused by checking the file type using file(1), this suggests an explanation of why it should do that. And whether it will ever get fixed for Intel Macs.
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How to discover what went wrong when a document doesn’t show the right thumbnail, but a generic icon instead. How to dive deeper to solve problems with 3rd party thumbnail and preview generators.
Generating icons for display as thumbnails, and previews of documents, depend on speed of delivery and icons as faithful as possible for their size. How QuickLook achieves this in Tahoe.
From the first image thumbnails around 35 years ago, the Mac has delivered better thumbnails and previews of documents, most recently using QuickLook. Here’s how it works, and how it can fail.
From the start of the fourth cycle in M4 Macs and the smallest ever, through the omission in macOS VMs, and QuickLook shortcomings, to the stealth firmware update.
How to discover which QuickLook generator or app extension should be creating Thumbnails or Previews for different file types, using this new version of Mints.
From the original Desktop databases linking files to distinctive icons, to the sophistication of QuickLook, how display of thumbnails for files has changed in Mac OS.
Have documents saved by your favourite apps lost their custom Thumbnails and Previews in Sequoia? Here’s what has gone wrong, and what you do about it.
Thumbnails viewed in the Finder, and previews now supporting Live Text and more. But what if it runs into problems? Here’s how to diagnose and solve them.
Problems with a document thumbnail or preview? Here’s a neat command tool which can help you diagnose and solve them.
The Eclectic Light Company 