Only show indicator if red

src/QmlControls/IndicatorButton.qml

@@ -1,3 +1,12 @@
+/****************************************************************************
+ *
+ * (c) 2009-2020 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
+ *
+ * QGroundControl is licensed according to the terms in the file
+ * COPYING.md in the root of the source code directory.
+ *
+ ****************************************************************************/
+
 import QtQuick          2.3
 import QtQuick.Controls 1.2
 
@@ -5,11 +14,9 @@ import QGroundControl.Controls      1.0
 import QGroundControl.Palette       1.0
 import QGroundControl.ScreenTools   1.0
 
-// An IndicatorButton works just like q QGCButton with the additional support or a red/green
+/// Works just like a regular button but it can have a red indicator on the right side displayed
-// indicator on the right edge.
-
 QGCButton {
-    property bool indicatorGreen: false
+    property bool indicatorGreen: false ///< true: no indicator shown, false: red indicator shown
 
     Rectangle {
         anchors.rightMargin:    ScreenTools.defaultFontPixelWidth / 3
@@ -18,6 +25,7 @@ QGCButton {
         width:                  radius * 2
         height:                 width
         radius:                 (ScreenTools.defaultFontPixelHeight * .75) / 2
-        color:                  indicatorGreen ? "#00d932" : "red"
+        color:                  "red"
+        visible:                enabled && !indicatorGreen
     }
 }