diff --git a/src/autoapp/UI/MainWindow.cpp b/src/autoapp/UI/MainWindow.cpp
index f5126fa..d6abfba 100644
--- a/src/autoapp/UI/MainWindow.cpp
+++ b/src/autoapp/UI/MainWindow.cpp
@@ -476,10 +476,14 @@ MainWindow::MainWindow(configuration::IConfiguration::Pointer configuration, QWi
         if (this->oldGUIStyle) {
             if (this->wallpaperClassicDayFileExists) {
                 this->setStyleSheet("QMainWindow { background: url(wallpaper-classic.png); background-repeat: no-repeat; background-position: center; }");
+            } else {
+                this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
             }
         } else {
             if (this->wallpaperDayFileExists) {
                 this->setStyleSheet("QMainWindow { background: url(wallpaper.png); background-repeat: no-repeat; background-position: center; }");
+            } else {
+                this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
             }
         }
         ui_->pushButtonDay->hide();
@@ -490,10 +494,14 @@ MainWindow::MainWindow(configuration::IConfiguration::Pointer configuration, QWi
         if (this->oldGUIStyle) {
             if (this->wallpaperClassicNightFileExists) {
                 this->setStyleSheet("QMainWindow { background: url(wallpaper-classic-night.png); background-repeat: no-repeat; background-position: center; }");
+            } else {
+                this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
             }
         } else {
             if (this->wallpaperNightFileExists) {
                 this->setStyleSheet("QMainWindow { background: url(wallpaper-night.png); background-repeat: no-repeat; background-position: center; }");
+            } else {
+                this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
             }
         }
         ui_->pushButtonNight->hide();
@@ -944,20 +952,28 @@ void f1x::openauto::autoapp::ui::MainWindow::toggleGUI()
         if (this->oldGUIStyle) {
             if (this->wallpaperClassicDayFileExists) {
                 this->setStyleSheet( this->styleSheet().append("QMainWindow { background: url(wallpaper-classic.png); background-repeat: no-repeat; background-position: center; }") );
+            } else {
+                this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
             }
         } else {
             if (this->wallpaperDayFileExists) {
                 this->setStyleSheet( this->styleSheet().append("QMainWindow { background: url(wallpaper.png); background-repeat: no-repeat; background-position: center; }") );
+            } else {
+                this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
             }
         }
     } else {
         if (this->oldGUIStyle) {
             if (this->wallpaperClassicNightFileExists) {
                 this->setStyleSheet( this->styleSheet().append("QMainWindow { background: url(wallpaper-classic-night.png); background-repeat: no-repeat; background-position: center; }") );
+            } else {
+                this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
             }
         } else {
             if (this->wallpaperNightFileExists) {
                 this->setStyleSheet( this->styleSheet().append("QMainWindow { background: url(wallpaper-night.png); background-repeat: no-repeat; background-position: center; }") );
+            } else {
+                this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
             }
         }
     }
@@ -1003,6 +1019,45 @@ void f1x::openauto::autoapp::ui::MainWindow::showTime()
             }
         }
 
+        // check if custom command needs black background
+        QFileInfo blackFile("/tmp/blackscreen");
+        if (blackFile.exists()) {
+            if (ui_->centralWidget->isVisible() == true) {
+                ui_->centralWidget->hide();
+                this->setStyleSheet("QMainWindow {background-color: rgb(0,0,0);}");
+            }
+        } else {
+            if (!this->nightModeEnabled) {
+                if (this->oldGUIStyle) {
+                    if (this->wallpaperClassicDayFileExists) {
+                        this->setStyleSheet("QMainWindow { background: url(wallpaper-classic.png); background-repeat: no-repeat; background-position: center; }");
+                    } else {
+                        this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
+                    }
+                } else {
+                    if (this->wallpaperDayFileExists) {
+                        this->setStyleSheet("QMainWindow { background: url(wallpaper.png); background-repeat: no-repeat; background-position: center; }");
+                    } else {
+                        this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
+                    }
+                }
+            } else {
+                if (this->oldGUIStyle) {
+                    if (this->wallpaperClassicNightFileExists) {
+                        this->setStyleSheet("QMainWindow { background: url(wallpaper-classic-night.png); background-repeat: no-repeat; background-position: center; }");
+                    } else {
+                        this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
+                    }
+                } else {
+                    if (this->wallpaperNightFileExists) {
+                        this->setStyleSheet("QMainWindow { background: url(wallpaper-night.png); background-repeat: no-repeat; background-position: center; }");
+                    } else {
+                        this->setStyleSheet("QMainWindow { background: url(:/black.png); background-repeat: no-repeat; background-position: center; }");
+                    }
+                }
+            }
+        }
+
         // check if phone is conencted to usb
         QFileInfo phoneConnectedFile("/tmp/android_device");
         if (phoneConnectedFile.exists()) {
diff --git a/src/autoapp/UI/mainwindow.ui b/src/autoapp/UI/mainwindow.ui
index db64329..ca72f51 100644
--- a/src/autoapp/UI/mainwindow.ui
+++ b/src/autoapp/UI/mainwindow.ui
@@ -31,7 +31,7 @@
    <string>MainWindow</string>
   </property>
   <property name="styleSheet">
-   <string notr="true">color: rgb(255, 255, 255);</string>
+   <string notr="true">color: rgb(0, 0, 0);</string>
   </property>
   <widget class="QWidget" name="centralWidget">
    <property name="enabled">