Add demo mode and easteregg color to about page

evcharger-app/qml/AboutPage.qml

@@ -1,6 +1,7 @@
 import QtQuick
 import QtQuick.Controls
 import QtQuick.Layouts
+import EVChargerApp
 
 NavigationPage {
     title: qsTr("About")
@@ -29,4 +30,31 @@ NavigationPage {
             }
         }
     }
+    GeneralOnOffSwitch {
+        apiKey: "demo"
+        text: qsTr("Enable demo mode")
+        visible: true
+    }
+    WhiteItemDelegate {
+        SendMessageHelper {
+            id: setChargingColor
+            deviceConnection: theDeviceConnection
+        }
+
+        text: qsTr("Set charging color to new")
+
+        onClicked: setChargingColor.sendMessage({
+            type: "setValue",
+            key: "cch",
+            value: "#FEFEFE"
+        })
+
+        BusyIndicator {
+            visible: setChargingColor.pending
+        }
+
+        RequestStatusText {
+            request: setChargingColor
+        }
+    }
 }