I think if there's any upside to Tahoe, it's that it might push me into blogging for the first time in my life ever, because I just can't keep things to myself.
I actually feel sorry for Apple's developers. I can't see how you can ship software so bad and inconsistent unless you've been handed a terrible design spec from Dye's team.
The author notices that adding a toolbar changes the radius, and to me it makes sense. If theres a toolbar, I know how much I can cut the corners, because the icons in the toolbar are not gonna be in far corner. At the same time, when I am unsure about what type of content might get cut by the corner, I will reduce the cut slightly to give that content more space.
I couldnt care less that one radius is not the same as another, I guess my OCD levels are not that high (yet?).
And I say all of this as someone who dislikes the glass design, and especially hates the small, slowly fading in volume/brightness indicators in the corner replacing the mid screen beautiful instant indicator.
Maybe it shouldn't irritate me, but it's the first time I've encountered it in 30 years. I'm all for change and trying new things, but this doesn't feel like progress.
I am not saying that it's a good idea to have different corner radius, just that it's nothing new.
I feel like this is the design process. You have ideas, they sound ok, you try them out, and then immediately you revert a lot of them. The ideas without the taste to know when not to do something is becoming the new Apple way
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Jeff Johnson (My apps, PayPal.Me, Mastodon)
I’m sometimes late to notice new and terrible things about macOS 26 Tahoe, because I use it only for testing, on a secondary Mac. My main Mac remains on Sequoia, as enforced by Little Snitch. I was of course aware that app windows on Tahoe have exaggerated corner radiuses, but I was unaware until now that the window corner radius on Tahoe is not uniform: different windows can have different corner radiuses!
Below is a TextEdit window on Tahoe.

And below is a Calculator window in front of the TextEdit window. Notice the corners of the TextEdit window sticking out!

What accounts for the difference? A toolbar in the window.
In a new Mac app Xcode project, the main window has a less exaggerated corner radius by default, like TextEdit.

When I add a toolbar to the window, the corner radius automatically becomes more exaggerated, like Calculator.

That’s it. Seriously.
Apparently the corner radius also changes on Tahoe for some other window elements, such as a sidebar.
If this isn’t the stupidest user interface “feature” ever invented, I don’t know what is. The Mac used to be famous for consistency; now it’s becoming infamous for inconsistency.
By the way, Tahoe’s UI changes are perplexing not only for Apple users but also for Apple engineers. Here’s a bug fix from the open source WebKit browser engine powering Safari: [macOS] Scroll bars of root scroller may be cutoff due to corner radii of window.
Jeff Johnson (My apps, PayPal.Me, Mastodon)
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