feat: add --disable-csd and --disable-transparency for Wayland - #1
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On Wayland, WebKitGTK cannot composite an alpha surface, and GTK CSD renders as a black bar. These flags rewrite the window config before the webview is created. --disable-csd also sets GTK_CSD=0 before gtk_init.
3xian
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Sep 2, 2026
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The implementation is focused and safe: it rewrites Tauri's window config before webview creation, preserves existing defaults without flags, and has direct tests for parsing and config mutation. Local full checks and a launched-app smoke test pass. Non-blocking wording note: Wayland surfaces can carry alpha, and GTK_CSD=0 only disables GTK's default CSD (Tao 0.35 installs a custom titlebar); describing these as compositor/WebKitGTK compatibility workarounds would be more precise. The effective behavior still comes from decorations=false and transparent=false before window creation.
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On Wayland (niri, Sway, Hyprland, and similar), PinkCode's default acrylic + Overlay CSD chrome does not work:
These flags rewrite the window config before the webview is created (transparency cannot be changed after).
--disable-csdalso setsGTK_CSD=0beforegtk_init.macOS and Windows keep the existing Overlay / acrylic defaults unless the flags are passed.
Tested: unit tests for parse + config rewrite. I could not run a full Tauri Linux build in this environment (missing dbus for the GTK stack). Visual check is on niri with the same window settings we already use locally.