Wallpaper (Linux): support lxqt

CHANGELOG.md

@@ -6,7 +6,7 @@ Changes:
 * Drop the dependency of cJSON. We now use [yyjson](https://ibireme.github.io/yyjson/doc/doxygen/html/index.html) to parse JSON documents.
 
 Features:
-* Support KDE wallpaper detection (Wallpaper, Linux)
+* Support KDE / LXQT wallpaper detection (Wallpaper, Linux)
 * Support QTerminal version & terminal font detection
 
 # 1.11.3

src/detection/gtk_qt/qt.c

@@ -130,6 +130,8 @@ static void detectLXQt(const FFinstance* instance, FFQtResult* result)
         {"icon_theme = ", &result->icons},
         {"font = ", &result->font}
     });
+
+    ffParsePropFileConfig(instance, "pcmanfm-qt/lxqt/settings.conf", "Wallpaper=", &result->wallpaper);
 }
 
 const FFQtResult* ffDetectQt(const FFinstance* instance)