diff --git a/images/dark/backspace.svg b/images/dark/backspace.svg
new file mode 100644
index 0000000..4a77327
--- /dev/null
+++ b/images/dark/backspace.svg
@@ -0,0 +1,64 @@
+
+
diff --git a/images/light/backspace.svg b/images/light/backspace.svg
new file mode 100644
index 0000000..5ff8825
--- /dev/null
+++ b/images/light/backspace.svg
@@ -0,0 +1,62 @@
+
+
diff --git a/qml.qrc b/qml.qrc
index 2eb68fa..3501cdd 100644
--- a/qml.qrc
+++ b/qml.qrc
@@ -4,5 +4,7 @@
         qml/Zone.qml
         qml/StandardButton.qml
         qml/StandardPad.qml
+        images/light/backspace.svg
+        images/dark/backspace.svg
     
 
diff --git a/qml/StandardButton.qml b/qml/StandardButton.qml
index c383a5f..b0dea99 100644
--- a/qml/StandardButton.qml
+++ b/qml/StandardButton.qml
@@ -9,13 +9,14 @@ Item {
     signal clicked(string text)
 
     property string text
+    property var icon
     property alias textColor: _label.color
     property bool flat: false
 
     Layout.fillWidth: true
     Layout.fillHeight: true
 
-    property color backgroundColor: Meui.Theme.secondBackgroundColor
+    property color backgroundColor: Meui.Theme.backgroundColor
     property color hoveredColor: Meui.Theme.darkMode ? Qt.lighter(Meui.Theme.backgroundColor, 1.1)
                                                      : Qt.darker(Meui.Theme.backgroundColor, 1.1)
     property color pressedColor: Meui.Theme.darkMode ? Qt.darker(Meui.Theme.backgroundColor, 1.05)
@@ -44,6 +45,17 @@ Item {
         onClicked: control.clicked(control.text)
     }
 
+    Image {
+        id: _icon
+        anchors.horizontalCenter: parent.horizontalCenter
+        anchors.verticalCenter: parent.verticalCenter
+        width: control.height * 0.4
+        height: width
+        sourceSize: Qt.size(width, height)
+        source: control.icon ? control.icon : ""
+        visible: _icon.status === Image.Ready
+    }
+
     Label {
         id: _label
         anchors.horizontalCenter: parent.horizontalCenter
@@ -52,6 +64,7 @@ Item {
         horizontalAlignment: Text.AlignHCenter
         color: !flat ? Meui.Theme.textColor : Meui.Theme.highlightedTextColor
         text: control.text
+        visible: !_icon.visible
         minimumPointSize: Math.round(control.height / 5)
         font.pointSize: Math.round(control.height / 5)
     }
diff --git a/qml/StandardPad.qml b/qml/StandardPad.qml
index 889300e..f63d3c8 100644
--- a/qml/StandardPad.qml
+++ b/qml/StandardPad.qml
@@ -11,13 +11,16 @@ Item {
     GridLayout {
         id: _mainLayout
         anchors.fill: parent
-        columnSpacing: 1
-        rowSpacing: 1
+        columnSpacing: 2
+        rowSpacing: 2
         columns: 4
 
         StandardButton { text: "C"; onClicked: control.pressed(text) }
+        StandardButton {
+            icon: Meui.Theme.darkMode ? "qrc:/images/dark/backspace.svg" : "qrc:/images/light/backspace.svg"
+            onClicked: control.pressed("BACKSPACE")
+        }
         StandardButton { text: "%"; onClicked: control.pressed(text) }
-        StandardButton { text: "←"; onClicked: control.pressed(text) }
         StandardButton { text: "÷"; textColor: Meui.Theme.highlightColor; onClicked: control.pressed(text) }
         StandardButton { text: "7"; onClicked: control.pressed(text) }
         StandardButton { text: "8"; onClicked: control.pressed(text) }
diff --git a/qml/Zone.qml b/qml/Zone.qml
index f96ec38..85d98b5 100644
--- a/qml/Zone.qml
+++ b/qml/Zone.qml
@@ -92,7 +92,7 @@ Item {
                 textField.clear()
             else 
                 historyModel.clear()
-        } else if (text === 'BACK') {
+        } else if (text === 'BACKSPACE') {
             // backspace
             textField.remove(textField.cursorPosition, textField.cursorPosition - 1)
         } else {
diff --git a/qml/main.qml b/qml/main.qml
index 44c8b3d..b512a56 100644
--- a/qml/main.qml
+++ b/qml/main.qml
@@ -13,15 +13,8 @@ Meui.Window {
     title: qsTr("Calculator")
     id: rootWindow
 
-    backgroundColor: Meui.Theme.secondBackgroundColor
-    backgroundOpacity: Meui.Theme.darkMode ? 0.9 : 0.7
-
-    Meui.WindowBlur {
-        view: rootWindow
-        enabled: true
-        geometry: Qt.rect(rootWindow.x, rootWindow.y, rootWindow.width, rootWindow.height)
-        windowRadius: rootWindow.windowRadius
-    }
+    backgroundColor: Meui.Theme.darkMode ? Qt.rgba(46 / 255, 46 / 255, 46 / 255, 1.0)
+                                         : Qt.rgba(240 / 255, 238 / 255, 241 / 255, 1.0)
 
     CalcEngine {
         id: calcEngine