diff --git a/main.cpp b/main.cpp
index ca4b7d4..65bfcf2 100644
--- a/main.cpp
+++ b/main.cpp
@@ -28,7 +28,7 @@
 
 int main(int argc, char *argv[])
 {
-    QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps, true);
+    // QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps, true);
     QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling, true);
 
     QGuiApplication app(argc, argv);
diff --git a/qml/main.qml b/qml/main.qml
index 704dc06..f744149 100644
--- a/qml/main.qml
+++ b/qml/main.qml
@@ -2,6 +2,7 @@ import QtQuick 2.12
 import QtQuick.Controls 2.5
 import QtQuick.Layouts 1.3
 import Cutefish.Calculator 1.0
+import Qt.labs.platform 1.0
 import FishUI 1.0 as FishUI
 
 FishUI.Window {
@@ -16,6 +17,27 @@ FishUI.Window {
                                             : Qt.rgba(240 / 255, 238 / 255, 241 / 255, 1.0)
     background.opacity: rootWindow.compositing ? 0.95 : 1.0
 
+    MenuBar {
+        id: menuBar
+
+        Menu {
+            id: helpMenu
+            title: qsTr("&Help")
+
+            MenuItem {
+                text: qsTr("About")
+                onTriggered: aboutDialog.show()
+            }
+        }
+    }
+
+    FishUI.AboutDialog {
+        id: aboutDialog
+        name: rootWindow.title
+        description: qsTr("A simple calculator")
+        iconSource: "image://icontheme/cutefish-calculator"
+    }
+
     FishUI.WindowBlur {
         view: rootWindow
         geometry: Qt.rect(rootWindow.x, rootWindow.y, rootWindow.width, rootWindow.height)
@@ -49,7 +71,7 @@ FishUI.Window {
                 z: -1
                 anchors.fill: parent
                 color: FishUI.Theme.secondBackgroundColor
-                opacity: 0.8
+                opacity: 0.9
             }
 
             onPressed: zone.appendToTextField(text)