Split Linux panel-theme detection into two files and fix the KDE case
where the tray icon picked the wrong mono variant.
The freedesktop Settings portal's color-scheme reports the *global*
light/dark preference, but the KDE panel is painted from the
Complementary colour group, which can be dark even when the global
scheme is Light. The tray sits on the panel, so keying its black/white
mono icon off the portal value alone gave the wrong contrast on KDE.
Changes:
- tray_theme_linux.go keeps the dark/light decision; on KDE it now
reads the user's kdeglobals [Colors:Complementary] BackgroundNormal
to determine the actual panel luminance, falling back to the portal
color-scheme / GTK_THEME chain elsewhere.
- tray_theme_watcher_linux.go (new) owns the live half: a private
session-bus connection for the portal SettingChanged signal plus an
fsnotify watch on kdeglobals, repainting the tray on a panel-theme
flip.
- tray_theme_linux_test.go (new) covers the kdeglobals Complementary
parse against the KDE test-VM's real file layout.
NetBird desktop UI (Wails3 + React)
Replaces client/ui (Fyne). One binary on Windows / macOS / Linux,
talks to the NetBird daemon over gRPC, renders a React frontend in a
WebView.
Prerequisites
- Go ≥ 1.25, Node ≥ 20, pnpm (
corepack enable && corepack prepare pnpm@latest --activate) wails3CLI:go install github.com/wailsapp/wails/v3/cmd/wails3@latesttask:go install github.com/go-task/task/v3/cmd/task@latest- A running NetBird daemon (default:
unix:///var/run/netbird.sock, Windowstcp://127.0.0.1:41731) - Linux only:
libwebkit2gtk-4.1-dev,libgtk-3-dev,libayatana-appindicator3-dev
Develop without rebuilding
cd client/ui
task dev
task dev runs Vite (port 9245) + the Go binary + a *.go watcher.
Frontend edits hot-reload instantly. Go edits trigger a rebuild and
relaunch. Pass daemon flags after --:
task dev -- --daemon-addr=tcp://127.0.0.1:41731
For pure UI work (no native window, fastest loop):
cd frontend && pnpm dev
Production build
task build
Output in bin/. Frontend assets are embedded into the binary.
Cross-compile Windows from Linux
Install the mingw-w64 toolchain once:
sudo apt install gcc-mingw-w64-x86-64 # Debian/Ubuntu
sudo dnf install mingw64-gcc # Fedora
sudo pacman -S mingw-w64-gcc # Arch
Then:
CGO_ENABLED=1 task windows:build
Produces bin/netbird-ui.exe. macOS cross-compile from Linux is not
supported (signing and notarization need a real Mac).
Windows console build (logs in the terminal)
Default windows:build links the binary as a Windows GUI app, which
detaches from the launching console — logrus output, fmt.Println,
and panics go nowhere visible. To debug tray/event/daemon issues:
CGO_ENABLED=1 task windows:build:console
Produces bin/netbird-ui-console.exe. Run it from cmd.exe /
PowerShell / Windows Terminal and stdout/stderr land in that
terminal. Same flag works on a native Windows build (drop the
CGO_ENABLED=1 if your toolchain already has it set).
Regenerating bindings
When a Go service signature changes:
wails3 generate bindings
task dev does this automatically on *.go save.
Tray icons
Source SVGs live in assets/svg/ (state.svg + state-macos.svg). After editing
any SVG, rasterize to the PNGs the Go side embeds:
task common:generate:tray:icons
Requires Inkscape. Commit the resulting assets/*.png files alongside the
SVG change so CI doesn't need Inkscape installed.