diff --git a/src/app/main.cpp b/src/app/main.cpp
index 996e4b6..0dfe75f 100644
--- a/src/app/main.cpp
+++ b/src/app/main.cpp
@@ -1,14 +1,24 @@
 #include <QApplication>
-#include <QMainWindow>
+
+#include "MainWindow.hpp"
 
 int main (int argc, char* argv[])
 {
     QApplication Ensemble(argc, argv);
 
+    /* Ignore color schemes and styles of the operating system. */
+    QApplication::setStyle("fusion");
+    QApplication::setDesktopSettingsAware(false);
+
     QCoreApplication::setApplicationName("Ensemble");
     QCoreApplication::setApplicationVersion("0.1");
 
-    QMainWindow main_window {};
+    /* Build the main window of the application. */
+    MainWindow main_window;
+
+    /* Disable window frame and title bar. */
+    main_window.setWindowFlags(Qt::Window | Qt::FramelessWindowHint);
+
     main_window.show();
 
     return Ensemble.exec();