Install qt6-svg with PySide6: without Qt's SVG plugin the app's logo doesn't show

lib/update-notifier.sh

@@ -30,6 +30,8 @@ notify_enable() {
     info "Adding update notifications..."
     # PySide6 for the tray icon, notify-send for the notification's buttons.
     python3 -c 'import PySide6.QtWidgets' 2>/dev/null || missing+=(pyside6)
+    # (Its icons are SVGs, and Qt needs its SVG plugin for those.)
+    pacman -Q qt6-svg >/dev/null 2>&1 || missing+=(qt6-svg)
     command -v notify-send >/dev/null || missing+=(libnotify)
     if ((${#missing[@]})); then
         sudo pacman -S --needed --noconfirm "${missing[@]}" ||

lib/wizard-shortcut.sh

@@ -96,7 +96,7 @@ EOF
 #!/bin/bash
 # Installed by Steamify CachyOS: start the newest release of its app.
 set -o pipefail
-if [[ "\${1:-}" != --in-terminal ]] && ! python3 -c 'import PySide6.QtQml' 2>/dev/null; then
+if [[ "\${1:-}" != --in-terminal ]] && { ! python3 -c 'import PySide6.QtQml' 2>/dev/null || ! pacman -Q qt6-svg >/dev/null 2>&1; }; then
     exec $terminal "\$0" --in-terminal
 fi
 if ! curl -fsSL --max-time 30 "$WIZARD_APP_URL" | bash; then