[DO NOT MERGE] Switch default Plasma theme to breeze-dark to stop colors-file polling#59
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zhovner wants to merge 1 commit into
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[DO NOT MERGE] Switch default Plasma theme to breeze-dark to stop colors-file polling#59zhovner wants to merge 1 commit into
zhovner wants to merge 1 commit into
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The shipped "default" Plasma desktop theme is broken — its /usr/share/plasma/desktoptheme/default/ directory does not contain a colors file, but plasmashell polls for it ~700 times per second with no negative caching. The constant statx + faccessat loop pins idle plasmashell at ~12% CPU continuously, slows menu opens to multiple seconds, and accumulates into visible UI glitches. breeze-dark ships its own colors file, so the path resolves on the first probe and the polling loop disappears. Idle plasmashell drops from ~12% to near zero. Bundled in the same commit: * /etc/xdg/plasmarc + /etc/xdg/kdeglobals set the breeze-dark Plasma theme, BreezeDark color scheme, breeze-dark icons, and Breeze widget style as system defaults. User-level overrides in ~/.config/* still win via the normal XDG lookup chain. * KWin systemd drop-in cleaned up to keep only Environment=KWIN_COMPOSE=O2. KWIN_FORCE_SW_CURSOR=1 dropped (hardware cursor works on HDMI and saves per-frame CPU; KWIN_COMPOSE=O2ES replaced with O2. * FlipperOne wallpaper shipped as /usr/share/wallpapers/FlipperOne/ and wired up as the default for both the lock screen (via kscreenlockerrc) and the desktop session (seeded into /home/user/.config/ via a new run action in the ospack recipe).
alchark
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May 16, 2026
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alchark
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Going forward, let us please split changes so that one commit contains one logical change. Makes it easier to track breakages, revert things if needed, etc.
I'd like us to also use "Draft" state of PRs instead of [DO NOT MERGE] in titles - makes notifications more meaningful
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| mkdir -p /home/user/.config | ||
| cat > /home/user/.config/plasma-org.kde.plasma.desktop-appletsrc <<'EOF' | ||
| [Containments][1] | ||
| wallpaperplugin=org.kde.image | ||
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| [Containments][1][Wallpaper][org.kde.image][General] | ||
| Image=file:///usr/share/wallpapers/FlipperOne/contents/images/wallpaper.jpg | ||
| PreviewImage=file:///usr/share/wallpapers/FlipperOne/contents/images/wallpaper.jpg | ||
| EOF | ||
| chown -R user:user /home/user/.config |
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Can these manual steps be replaced by an overlay file under /etc/xdg?
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The shipped "default" Plasma desktop theme is broken — its /usr/share/plasma/desktoptheme/default/ directory does not contain a colors file, but plasmashell polls for it ~700 times per second with no negative caching. The constant statx + faccessat loop pins idle plasmashell at ~12% CPU continuously, slows menu opens to multiple seconds, and accumulates into visible UI glitches.
breeze-dark ships its own colors file, so the path resolves on the first probe and the polling loop disappears. Idle plasmashell drops from ~12% to near zero.
Bundled in the same commit:
/etc/xdg/plasmarc + /etc/xdg/kdeglobals set the breeze-dark Plasma theme, BreezeDark color scheme, breeze-dark icons, and Breeze widget style as system defaults. User-level overrides in ~/.config/* still win via the normal XDG lookup chain.
KWin systemd drop-in cleaned up to keep only Environment=KWIN_COMPOSE=O2. KWIN_FORCE_SW_CURSOR=1 dropped (hardware cursor works on HDMI and saves per-frame CPU; KWIN_COMPOSE=O2ES replaced with O2.
FlipperOne wallpaper shipped as /usr/share/wallpapers/FlipperOne/ and wired up as the default for both the lock screen (via kscreenlockerrc) and the desktop session (seeded into /home/user/.config/ via a new run action in the ospack recipe).