Fix crash when using QCoreApplication and libmarblewidget-qt5

Do not use QApplication::palette() in statically initialized variables

src/plugins/render/annotate/AreaAnnotation.cpp

@@ -38,9 +38,7 @@ const int AreaAnnotation::selectedDim = 15;
 const int AreaAnnotation::mergedDim = 20;
 const int AreaAnnotation::hoveredDim = 20;
 const QColor AreaAnnotation::regularColor = Oxygen::aluminumGray3;
-const QColor AreaAnnotation::selectedColor = QApplication::palette().highlight().color();
 const QColor AreaAnnotation::mergedColor = Oxygen::emeraldGreen6;
-const QColor AreaAnnotation::hoveredColor = QApplication::palette().highlight().color();
 
 AreaAnnotation::AreaAnnotation( GeoDataPlacemark *placemark ) :
     SceneGraphicsItem( placemark ),
@@ -742,6 +740,8 @@ void AreaAnnotation::drawNodes( GeoPainter *painter )
     QColor glowColor = QApplication::palette().highlightedText().color();
     glowColor.setAlpha(120);
 
+    auto const selectedColor = QApplication::palette().highlight().color();
+    auto const hoveredColor = selectedColor;
     for ( int i = 0; i < outerRing.size(); ++i ) {
         // The order here is important, because a merged node can be at the same time selected.
         if ( m_outerNodesList.at(i).isBeingMerged() ) {

src/plugins/render/annotate/AreaAnnotation.h

@@ -228,9 +228,7 @@ private:
     static const int mergedDim;
     static const int hoveredDim;
     static const QColor regularColor;
-    static const QColor selectedColor;
     static const QColor mergedColor;
-    static const QColor hoveredColor;
 
     const ViewportParams *m_viewport;
     bool m_regionsInitialized;