Update App.js

public/App.js

@@ -64,7 +64,7 @@ var initialPosition = Cesium.Cartesian3.fromDegrees(16.368084, 48.183257, 360);
     var building = viewer.scene.primitives.add(new Cesium.Cesium3DTileset({url: 'https://w2.iaf.hft-stuttgart.de/CesiumData/3DTiles/Buildings/BuildingSolid/Meidling_Vienna/tileset.json'}));
 	var outdoorbuildinginstallation = viewer.scene.primitives.add(new Cesium.Cesium3DTileset({url: 'https://w2.iaf.hft-stuttgart.de/CesiumData/3DTiles/Buildings/BuildingInstallation/Meidling_Vienna/tileset.json'}));
 	var roofsurface = viewer.scene.primitives.add(new Cesium.Cesium3DTileset({url: 'https://w2.iaf.hft-stuttgart.de/CesiumData/3DTiles/Buildings/RoofSurface/Mediling_Vienna/tileset.json'}));
-	var roofdefaultstyle = new Cesium.Cesium3DTileStyle({color : "color('#EA9999')"});
+	var roofdefaultstyle = new Cesium.Cesium3DTileStyle({color : "color('#990000')"});
 		roofsurface.style = roofdefaultstyle;
       // set roof height and load roof tile 
 				roofsurface.readyPromise.then(function(tileset) {
@@ -265,7 +265,7 @@ function active3DTilePicker() {
             if (picked3DtileFeature !== selected.feature) {
                 highlighted.feature = picked3DtileFeature;
                 Cesium.Color.clone(picked3DtileFeature.color, highlighted.originalColor);
-                picked3DtileFeature.color = Cesium.Color.AZURE;
+                picked3DtileFeature.color = Cesium.Color.BLANCHEDALMOND;
             }
         }
     }, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
@@ -299,7 +299,7 @@ function active3DTilePicker() {
                 Cesium.Color.clone(picked3DtileFeature.color, selected.originalColor);
             }
             // Highlight newly selected feature
-            picked3DtileFeature.color = Cesium.Color.AZURE;
+            picked3DtileFeature.color = Cesium.Color.BLANCHEDALMOND;
             // Set feature infobox description - if condition is for different info box for different entities such as building solids, roofs, landuse etc
 			
 			if (picked3DtileFeature.getProperty('SemanticType') === "Building") {