Bug 511993

Summary:	Feature request: Force rounded corners for all windows
Product:	[Plasma] kwin	Reporter:	Женя Бородин <rimkamix0>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED INTENTIONAL
Severity:	wishlist	CC:	kdedev, xaver.hugl
Priority:	NOR
Version First Reported In:	6.5.3
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Женя Бородин 2025-11-12 13:27:18 UTC

KDE Plasma 6.5 already has rounded window corners (configurable via System Settings → Colors & Appearance → Window Decorations → Breeze), but not all applications respect it. Some Qt applications, like YaST on openSUSE, and some GTK applications still have sharp corners.

The proposal is to add an additional setting that forces all windows to have rounded corners, regardless of the toolkit they are built with. This option would be disabled by default, so the existing behavior remains unchanged unless the user chooses to enable it.

A similar feature exists in GNOME as the extension “Rounded Window Corners Reborn”, which makes almost all windows rounded.

Why this is important:
- Provides a consistent appearance for all windows.
- Prevents mixing different visual styles.
- Enhances overall user experience and Plasma aesthetics.

Optional:
- Ability to toggle forced rounding on/off.
- Adjustable corner radius.

Comment 1 Женя Бородин 2025-11-12 17:21:51 UTC

This should really be a wishlist (feature request), not a bug

Comment 2 TraceyC 2025-12-08 23:54:33 UTC

Thanks for the feature request. Since GNOME has a way to do this with an extension, it should be something we can consider doing.

Comment 3 Zamundaaa 2025-12-08 23:58:59 UTC

There are KWin effects that do this (https://github.com/matinlotfali/KDE-Rounded-Corners), but it's not something we can do well (efficiently and completely glitch-free) universally and will thus not be something we ship upstream.