Override window corner radius, disable floating sidebar (!!)

[PotentPeas]

I have to point to this thread in the Golden Gate subforum.

Want the bigger window corner radius back? Come inside

Enter defaults write -g NSConvolutionOverride1 -float 26 into the Terminal and boom, Tahoe's window corner radius is back. You can also make it even smaller or larger, whatever you prefer. 26 is used for Tahoe, 10 was pre-Tahoe. 20 is used for Golden Gate.

forums.macrumors.com

These terminal commands will disable the floating sidebar (first one) and set the window corner radius back to how it was in Sequoia (second one). To see the effect you have to close and relaunch your app after running the commands. (Log out and log back in to clean up "everything".)

defaults write -g NSSplitViewItemSidebarDefaultsToFloatingAppearance -bool false
defaults write -g NSConvolutionOverride1 -float 10

If you want to set things back to "default", use:

defaults delete -g NSSplitViewItemSidebarDefaultsToFloatingAppearance
defaults delete -g NSConvolutionOverride1

You can try different values for the window corner radius (second command). 26 is Tahoe's standard, 20 is Golden Gate's standard, 10 is for previous versions of macOS. You can set it smaller than 10, but some windows look a little weird in the corner if you do.

[Edit]
Disabling the floating sidebar seems to work in some apps (Finder, Calendar, Reminders, Notes) but not others (Weather, Maps, Find My, Books).

 

[Dust-by-Monday]

Awesome. It also makes ALL the window corners the same regardless of their toolbar.

 

[triptolemus]

Sanity restored. Thank you!

 

[watagan]

... and in the same thread

defaults write -g NSMenuEnableActionImages -bool NO

Then re-start apps to remove the hit and miss icons in Tahoe menu bar items.

 

[Dust-by-Monday]

... and in the same thread

defaults write -g NSMenuEnableActionImages -bool NO

Then re-start apps to remove the hit and miss icons in Tahoe menu bar items.

Not all of them though :-(

 

[watagan]

Not all of them though :-(

Correct, app platforms differ, hybrid/custom platforms exist. Is same situation for window corners.

 

[Nada Ting]

Can it remove corner radii from album artwork? Nothing more absurd than a radius on an album cover.

 

[PotentPeas]

Can it remove corner radii from album artwork? Nothing more absurd than a radius on an album cover.

No. This is only for window corners.

 

[turbineseaplane]

This is glorious!

Thank you for posting it!

 

[963852741]

This will only work on old school apps. Will not work on Catalyst apps etc.

 

[PotentPeas]

This will only work on old school apps. Will not work on Catalyst apps etc.

The window corner radius change works on all apps, including Catalyst apps. I have not found one window that does not respect it.

The floating sidebar change may well not work on Catalyst apps (noted in OP that it doesn't work on all apps). Fortunately, Apple is rolling back the floating sidebar with Golden Gate.

 

[LeVan]

No. This is only for window corners.

Thanks for this fix! How does it work on macOS 27, now at beta 2 (or #3 soon)?

 

[tkermit]

Thanks for this fix! How does it work on macOS 27, now at beta 2 (or #3 soon)?

Works just as well on Golden Gate.

Setting the corner radius to 10 actually eliminates a lot of glitches where the scroll bar is slightly cut off in some apps, so that's what I'll use on macOS 27, too.

 

[963852741]

The floating sidebar change may well not work on Catalyst apps (noted in OP that it doesn't work on all apps). Fortunately, Apple is rolling back the floating sidebar with Golden Gate.

It doesn't work for multiple reasons.

 

[cendre]

Setting the window corner radius to 8-10 instantly makes the experience feel more polished and premium. Steve Jobs was definitely right about that. Thank you for sharing.

 

[MacGizmo]

I haven't come across a single app this doesn't work with.

 

[lmaodzedun]

I haven't come across a single app this doesn't work with.

Google Chrome.

 

[Nik]

It is remarkable, how much better Tahoe looks with these two changes.

 

[PotentPeas]

Google Chrome.

You are right. I tried it in an "unbranded Chromium" and that app still has a larger corner radius. …I don't typically use Chromium-based browsers so this one escaped my testing.

It is fine on Opera (the only other Chromium-based browser that I have installed).

 

[ResolutionNZ]

Apparently these re-instate the defaults for Sequoia, though I prefer the second line to end with 15.

defaults write -g NSSplitViewItemSidebarDefaultsToFloatingAppearance -bool false

defaults write -g NSConvolutionOverride1 -float 10

killall Finder

 

[Dolphins1972]

You are right. I tried it in an "unbranded Chromium" and that app still has a larger corner radius. …I don't typically use Chromium-based browsers so this one escaped my testing.

It is fine on Opera (the only other Chromium-based browser that I have installed).

Yep, works on Safari and Firefox but not Brave browser.

 

[conmee]

Call me crazy, but the floaty sidebar with 10pt radius in Golden Gate doesn't look so bad haha! 😉

 

[boswald]

Call me crazy, but the floaty sidebar with 10pt radius in Golden Gate doesn't look so bad haha! 😉

View attachment 2644570

I actually like the floating sidebar. It looks like it's stacked or layered. But that corner tweak really does make a big difference.

 

[Dust-by-Monday]

They should make the floating sidebar a toggle in settings.

 

[benholt]

Two things people miss with the NSConvolutionOverride1 trick: the killall Finder at the end only relaunches Finder, so every other app needs a full Cmd-Q and relaunch (not just close-window) to pick up the new global default. And Chromium/Electron apps like Brave, Slack, VS Code, and Discord draw their own window chrome — the global write literally can't reach them, same for a couple of Catalyst apps. That's why Brave still shows Tahoe corners no matter how many times you run the command. Unfortunate but there's no defaults-write workaround for apps that don't route through AppKit's window styling.