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Posted by robenkleene 3 days ago

macOS Tahoe windows have different corner radiuses(lapcatsoftware.com)
224 points | 165 commentspage 3
satGuess 7 hours ago|
I hadn’t noticed this before, but now I can’t unsee it. UI inconsistencies like that tend to stand out once someone points them out.
nikolay 3 days ago||
It keeps annoying me, too. How can their developers not see this?!
galad87 7 hours ago||
Because that's by design. The windows are meant to have different corner radius, they even explained it at WWDC. Then people forgot and rediscovered it again, like it was some new thing.

I am not saying that it's a good idea to have different corner radius, just that it's nothing new.

mikae1 7 hours ago||
> they even explained it at WWDC

Did they explain the reasoning?

Zafira 7 hours ago|||
> In the new design system, windows now have a softer, more generous corner radius, which varies based on the style of window. Windows with toolbars now use a larger radius, which is designed to wrap concentrically around the glass toolbar elements, scaling to match the size of the toolbar. Titlebar-only windows retain a smaller corner radius, wrapping compactly around the window controls. These larger corners provide a softer feel and elegant concentricity to the window…
conductr 6 hours ago|||
Just a bunch of words that raised no red flags, maybe sounded like a decent idea even, but when you see it how is your reaction not “oh, that’s bad”

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

AdamN 4 hours ago|||
I think what they're saying is that larger radii are for 'real windows' that have toolbars and such but there are 'mini windows' and those get smaller radii. It doesn't seem well enough baked for them to release it like it is but there are other UI problems that I've been annoyed about for a long time (in particular shadows around window boundaries so you can never get a truly flat tiled experience).
nnwright 3 hours ago|||
Rounded corners (and the utterly massive drag area next to them) are touchbar 2.0. Features that no one asked for, has questionable value, and that provides marginal benefit even for its intended audience (touchscreen macs, no doubt).
altern8 6 hours ago||||
So, there was no reasoning.
galad87 7 hours ago|||
To align the window corner radius to the window close/minimize/resize buttons distance from the edge of the window.
Karliss 4 hours ago|||
Except it kind of fails at that too. The window corners seem to be either based on those squircle things or some kind of other varying radii curve which eases out into sides much more gradually than proper circles. The window buttons (close, minimize) the round toolbar buttons anchored to top right corner are based on proper circles. Attempting to center circle in a varying curvature corner results in varying spacing between the circle and corner, which defeats the whole point of why different windows have different corner size (not calling it radius because they are not circles).

When the top right corner contains a search field instead of rounded button, that also seems to use varying curvature instead of capsule with proper circles at the ends. Still results in varying spacing between window corner and the toolbar content.

And that's just the 2 top corners. Attempts to align top corners result in even bigger mismatch with the rest of the window content. For example calculator -> it has a grid of round buttons. While the window corners might match top bar (as good as they can due to different shapes) the main calculation buttons don't match the corners at all.

Similar problem affects many of the popups which have something like confirmation button anchored to bottom right corner.

Rounded scrollbar handle - not aligned with bottom left corner size, instead it awkwardly gets cut of by different amount in each program.

Menus also have this disease. The non circular corner curve of overall menu shape extends way past the corner of item highlight resulting in varying spacing and making it feel almost like whole menu has bulged out instead of flat sides.

trymas 3 hours ago||
Exactly!

And to OC you're replying to: window close/minimise/resize were already equidistant from window edge on macOS 15 and probably earlier.

Here is a screenshot (safari in the background, textedit in front): https://pasteboard.co/OeMBTDKGsTx9.png

In MacOS 26 it's only weirder, because as you say - due to squircle window corners, now we have this constantly varying distance to the edge.

EDIT: I "get" apple's fascination to squircle, but why they made it such a big radius. Probably no one would've complained if they just have changed from current ~15-20px rounded corners into ~15-20px squircles, but they went 50px+ on toolbared windows.

nikolay 7 hours ago|||
I'd rather have my corners perfect and not have the constant eyesore of pixels bleeding from other windows' corners!
riffraff 7 hours ago|||
I'm starting to suspect most people at Apple (and Microsoft) just spend time in a browser these days and so they don't notice how the desktop has gone shitty.
pjmlp 7 hours ago||
I won't be public shaming, but on a .NET podcast I just heard of an internal Microsoft project that took 7 years (!), to become public, it was a plain single Assembly .NET library nothing special (1 DLL).
littlecranky67 6 hours ago||
Which one?
hurfdurf 5 hours ago|||
https://news.ycombinator.com/item?id=47320534
pjmlp 7 hours ago|||
Priorities on what tickets to work on, and Apple being proudly underresourced.
jiehong 7 hours ago|||
Yep, it’s just ugly IMO
mulmen 7 hours ago||
Because they did it on purpose to demonstrate their utter contempt for their users and to show us how wrong we are.
mkzet 5 hours ago||
I will never upgrade from Sequoia and when I'll have no other options migrate to another laptop!
asimovDev 5 hours ago||
I bought a 3k M3 Max mbp just a couple months away from the Tahoe and liquid glass announcement which I am a little miffed about, but it's still an awesome machine I enjoy using while it's on Sequoia. I am really hoping macOS 27 will be this decade's Snow Leopard
marxisttemp 5 hours ago||
Wow, you’re leaving a lot of great features like Spotlight shortcut calling, Spotlight clipboard history, and LLM shortcuts on the table because of a couple UI inconsistencies. “Design is how it works.”
cpt_sobel 4 hours ago|||
Just get Raycast for what you mentioned, + much better (the bar is really low tbf) search
marxisttemp 1 hour ago||
Why would I use Raycast when Spotlight has those features built in, and unlike Raycast can directly call Shortcuts?
Nekorosu 4 hours ago||||
Design is much more than that.

Also, it’s almost as if you can’t imagine that other users might have needs and preferences different from yours.

bschwindHN 4 hours ago|||
Why are you shilling so hard for these features?
marxisttemp 4 hours ago|||
Because they’re significant improvements to the way macOS works for power users
greenchair 4 hours ago|||
their username..
iainmerrick 4 hours ago||
I dislike Tahoe too, but this particular thing is not new.

I just did an image search for "classic macos" and one of the first hits was from https://www.versionmuseum.com/history-of/classic-mac-os. Look at those System 1 screenshots, from 42(!) years ago -- round corners on Puzzle and Calculator, square corners on Note Pad and Control Panel! No consistency at all, isn't it infuriating?

afandian 4 hours ago||
Puzzle and Calculator were Desk Accessories (DAs), a special kind of app.

Some cool details here: https://en.wikipedia.org/wiki/Desk_accessory

Like Tahoe, it was deliberate and there's an explanation for the difference.

But I do wonder if people at the time felt the same way.

iainmerrick 4 hours ago||
That led me to https://www.folklore.org/Desk_Ornaments.html which is a very fun read. Interesting to note that the UI style of the DAs is actually not consistent at all, some have round corners and some don't.

I particularly like this Bill Atkinson tidbit at the end:

Bill Atkinson complained to me that it was a mistake to allow users to specify their own desktop patterns, because it was harder to make a nice one than it looked, and led directly to ugly desktops. [...] So he made MacPaint allocate a window that was the size of the screen when it started up, and filled it with the standard 50% gray pattern, making his own desktop covering up the real one, thus protecting the poor users from their rash esthetic blunders, at least within the friendly confines of MacPaint.

(He was totally right, making your own desktop patterns was fun but the standard checkerbard was far and away the best choice.)

bestham 4 hours ago|||
“Well actually” in System 1 and later Classic macOS the puzzle and the calculator are ”Desk Accessories” that is applications that can run simultaneously as other apps, even though the operating system does not support multitasking. The rounded corners are there to distinguish them from the current running application.
iainmerrick 4 hours ago||
Yep, I'm aware. Just like Tahoe, it's intentional and there's a rationale behind it. It may or may not be immediately obvious depending on the user, and people may or may not like the way it looks.
lapcat 2 hours ago||
> this particular thing is not new.

Article author here. I think the quoted claim is somewhat misleading. There are at least two different ways to interpret a UI feature as "not new":

1) The feature has been in the operating system all along.

2) Something analogous existed 40 years ago and then disappeared long ago.

You're referring to 2, not 1.

The only reason I chose Calculator app for my screenshot is that its window is very small, which allowed me to make a small screenshot, because people may be reading the blog post on small phone screens. In other ways, admittedly, Calculator is not a great example, because its window is not actually resizable, and thus it's not the type of window that you would normally place in the corners of your screen, like a resizable document window.

Rounded corners on a "widget" type of app are not as objectionable. As other commenters have noted, the calculator in "classic" Mac was a special Desk Accessory. In contrast, on Tahoe, the varying corner radii affect ordinary document-based apps.

Consider Mac OS X 10.0 Cheetah. The top of the windows had rounded corners, but the bottom did not! https://512pixels.net/wp-content/uploads/2018/08/10-0-Cheeta...

TextEdit, for example, did not start to have rounded bottom corners until Mac OS X 10.7 Lion, which was itself much maligned for bringing the iPhone UI to Mac.

ai-calcium 4 hours ago||
Finally, the update we've all been waiting for
etchalon 7 hours ago||
This feels like one of those "done for backwards compatibility and we tested not doing it and it was worse" things where everyone assumes incompetence over good-faith trade-offs being driven by release schedules.
jeroenhd 5 hours ago||
It's by design. This isn't a bug or a skipped test case.

https://developer.apple.com/videos/play/wwdc2025/310/?time=4...

> Each element is designed with a curvature that sits neatly within the corner radius of its container, in this case the window itself. And this relationship goes both ways. In the new design system, windows now have a softer, more generous corner radius, which varies based on the style of window. Windows with toolbars now use a larger radius, which is designed to wrap concentrically around the glass toolbar elements, scaling to match the size of the toolbar. Titlebar-only windows retain a smaller corner radius, wrapping compactly around the window controls. These larger corners provide a softer feel and elegant concentricity to the window but they can also clip content that sits close to the edge of the window.

troupo 4 hours ago||
Design for the sake of design. That entire paragraph reads like a post-hoc justification for a design decision they never thought through
iknowstuff 6 hours ago||
Did the radius need changing
afandian 6 hours ago||
Something needed changing! And the radius was something!
duskdozer 6 hours ago||
What if they randomized the radius on every launch? A fresh, modern experience every time!
afandian 5 hours ago|||
Make it “on every corner” and we have a deal.

(EDIT - and Gemini could create a plausible explanation post-hoc each time)

agos 4 hours ago||
different radius on every corner and we're back in the winamp skin era, not bad!
egorfine 4 hours ago|||
Don't give them ideas
zer0zzz 5 hours ago||
I actually really like that certain windows have a different corner radius. It wraps around the chrome of the app properly.

If you made it this far, know I am totally messing with you. It really is unnerving.

mft_ 3 hours ago||
[dead]
wahnfrieden 6 hours ago||
Why should the two window varieties have the same corner radius? There's no design analysis here, only conservatism.
hulitu 37 minutes ago||
Because when they overlap, you want to resize the top one.
AlexandrB 2 hours ago||
The bottom of windows show have no corner radius at all. For most types of content it sacrifices usable space for UI chrome. It also makes resizing harder and scroll bars ugly.
ulbu 6 hours ago|
read somewhere that maybe they’re preparing for OLED screens
ant6n 6 hours ago||
How does that argument work?
defraudbah 6 hours ago|||
which will be even worse so you don't get that angry after years of bad design, lol
hulitu 36 minutes ago|||
O from OLED is round. That's why they need rounded windows. /s
Y-bar 6 hours ago|||
All iPhones since the iPhone X (2017), and not the iPhone SE line, has an OLED display. iPad Pro also has OLED.
Reason077 5 hours ago||
There's also been rumours of a new high-end OLED MacBook ("Ultra"?) in the works, possibly this year.
crote 6 hours ago|||
If it is that crucial, they should add a few pixels of margin around the entire desktop, and randomly shift everything around. Doing only corners and not straight edges, and doing it by a fixed per-app amount, seems a bit silly.
ulbu 3 hours ago||
is there a reason to downvote this?
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