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Today is the 20th anniversary of the release of Mac OS X. I wrote a bit about it in my Macworld column this week, and also put together a little Mac OS X timeline.
I’ve written a lot about Mac OS X over the years. Compiling that timeline reminded me of that. I was a features editor at Macworld when Apple began shipping OS X precursors, and so I edited most of our early coverage. Beginning with Mac OS X 10.1, I wrote most of Macworld’s big feature stories covering each release.
I’ve lived in the same house since 1999, so I have spent many springs and summers sitting out in my yard under our redwood tree writing and editing articles about Mac OS X, OS X, and now macOS.
How many? This many:
Wow, that’s a lot of operating-system releases. Here’s to the next uncountable number of them.
(While I wrote shorter reviews for Macworld, John Siracusa was always reviewing OS X at length for Ars Technica. Here’s a list of all his reviews.)
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Find the color value of any color on your screen.
In the Digital Color Meter app on your Mac, do any of the following:
Find the value of a color: Move the pointer over the pixels whose values you want to see. The color under the pointer is displayed in the Digital Color Meter window, with its color values on the right.
To change the format of the displayed color values for RGB-based color spaces, choose View > Display Values.
Adjust the size of the aperture: Drag the Aperture Size slider. Make the aperture smaller to select a small area or a single pixel. If more than one pixel is within the aperture, the color values of all pixels are averaged.
Choose a different color space: Click the pop-up menu, then choose a color space. The values shown are specific to the color space you choose.
Lock the aperture’s location: Do one of the following:
Lock the aperture horizontally: Press Command-X.
Lock the aperture vertically: Press Command-Y.
Lock the aperture in both directions: Press Command-L.
Locking the aperture makes it easier to copy the pixel’s color value. When the aperture is locked both horizontally and vertically, it doesn’t move as you move the pointer.
Copy the color value: Do one of the following:
Copy the color value as text: Choose Color > Copy Color as Text, or press Shift-Command-C.
Copy the color value as an image: Choose Color > Copy Color as Image, or press Option-Command-C.