https://bugs.kde.org/show_bug.cgi?id=485060
Bug ID: 485060
Summary: Breeze decorations draw invisible 1px border / margin
on bottom and right edges of windows
Classification: Plasma
Product: Breeze
Version: 6.0.3
Platform: Neon
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: window decoration
Assignee: plasma-b...@kde.org
Reporter: mds_f...@protonmail.com
CC: kwin-bugs-n...@kde.org, uhh...@gmail.com
Target Milestone: ---
Created attachment 168164
--> https://bugs.kde.org/attachment.cgi?id=168164&action=edit
Trying to snap a window to the bottom right of a screen
SUMMARY
Any window using the default Breeze window decorations has an invisible 1px
border / margin drawn around it.
This prevents windows from being snapped to the right or bottom sides of the
screen and the background behind them stays visible.
The issue becomes especially noticeable if moving content (i.e. media) is
played behind the window and "shines through" the 1px margin on the bottom and
right sides.
This can also be seen in screenshots taken by Spectacle (if not including
window shadow). Every screenshot will have a 1px padding on the bottom and
right.
ADDITIONAL INFORMATION
- Does not affect fullscreen windows.
- No non-default scaling needed (100% scaling).
- Occurs on BOTH X11 and Wayland platforms.
- Oxygen and Plastik window decorations are NOT affected.
- Many third-party window decorations are NOT affected.
- Top and left edges of windows are NOT affected.
STEPS TO REPRODUCE
1. Use full KDE neon defaults / Use Breeze window decorations on a different OS
2a. Try to snap a window to the right side or the bottom of the screen
OR
2b. Try to snap a windows right or bottom edge to another window
OBSERVED RESULT
- The background behind the window will be visible around the window ("shines"
through).
- The window does not properly snap to other windows or screen edges.
EXPECTED RESULT
The window should properly snap to other windows or screen edges, without any
awkward margins.
SOFTWARE/OS VERSIONS
Linux: KDE neon Testing 20240402
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.6.3
The issue occurs within the first 15 minutes on KDE neon. I just started the VM
and tried to snap the Welcome Center to the side to reproduce it.
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