[coastalpuma]

This is an existing and somewhat nitpicky issue, but it's also annoying how they specifically insist on rounded corners "because that matches all modern devices" in the announcement. Pretty much all third party external monitors don't, and even their latest top line laptops only have them at the top of the screen. So we're stuck with these dumb little triangles of background peeking out. It's kind of the "charging port on the bottom of the magic mouse" of MacOS.

[cardanome]

Rounded corners vex me so much.

I can barely cope with their being no option to turn them off on Mac, especially for windows. I literally had to make my background pure black because the few pixels of backgrounds always showing pissed me off so much.

[oneeyedpigeon]

It makes taking nice screenshots so much more awkward, if not impossible. Just give us a quick toggle option, please!

[adregan]

Command+option+shift+4 then press the space bar to take a screenshot of a single window (shadow included).

[tommit]

FYI for anyone not aware it's CMD + Shift + 4 (no option)

[adregan]

Oops. Thank you!

[carlosjobim]

You know something that almost never has rounded corners? Glass.

[vel0city]

I have several objects on my desk made of glass with rounded corners. The glass lunch container I ate out of a little bit ago. A squircle glass bowl on my desk holding various nicknacks. The glass on the front of my phone. The glass I'm drinking out of right now has rounded corners. I used to have a kitchen table that had the top as one giant sheet of glass as a square with rounded corners. The windows in my car have some corners rounded. Tons of glass things have rounded corners.

[tshaddox]

And don't forget eyeglasses, which are named for the fact that they are made of glass, and which very often have rounded corners.

[vel0city]

Here I was looking through them and not even thinking about them. Yes!

[carlosjobim]

No you don't.

Just kidding: Yeah, it's just that when I think about a digital glass effect it feels more right with square corners than rounded corners. Because glass windows which we look through usually have square corners. Says I, who spend most of my time looking through a curved motorcycle helmet visor.

[shakna]

Rounded corners is easier than straight. When you work glass, its usually somewhere between a liquid and non-Newtonian fluid. Molding it into round frames is trivial.

That's why we have round glass coasters, round lenses, round glasses for drinking, etc.

[tshaddox]

Almost every common glass object I can think of has rounded corners. The only obvious exception is most household window panes. I have to think pretty hard to come up with another one...maybe aquarium tanks? Some mirrors and glass tables, although the images that comes to mind for those are just as likely to be round as square.

I'm very curious which items you went through before concluding that glass almost never has rounded corners.

[carlosjobim]

I should have specified glass panels/panes, specifically windows and mirrors, which you mention.

[robotresearcher]

These likely have small radius rounded corners too.

[roguetoasterer]

The fate of all perfectly squared glass sheets is to become quite round if you get them hot enough. If you get a moment, try looking up glass fusing. It is admittedly a niche hobby, but it's pretty interesting what starts happening when you apply a little heat.