Decreasing the opacity a bit.

I've also changed it so it reacts to hover events (changing the opacity in the process).

src/FlightMap/Widgets/QGCInstrumentWidget.qml

@@ -78,12 +78,21 @@ Rectangle {
     }
 
     Image {
+        id:                 gearThingy
         anchors.bottom:     attitude.bottom
         anchors.right:      attitude.right
         source:             "/res/gear.svg"
         mipmap:             true
+        opacity:            0.5
         width:              attitude.width * 0.15
         fillMode:           Image.PreserveAspectFit
+        MouseArea {
+            anchors.fill:   parent
+            hoverEnabled:   true
+            onEntered:      gearThingy.opacity = 0.85
+            onExited:       gearThingy.opacity = 0.5
+            onClicked:      _valuesWidget.showPicker()
+        }
     }
 
     Rectangle {