diff --git a/data/assets/examples/urlsynchronization.asset b/data/assets/examples/urlsynchronization.asset
index cc7e4b1a7c..44f0f68990 100644
--- a/data/assets/examples/urlsynchronization.asset
+++ b/data/assets/examples/urlsynchronization.asset
@@ -23,7 +23,8 @@ asset.syncedResource({
     Type = "UrlSynchronization",
     Name = "Example Large",
     Identifier = "example_large",
-    Url = "http://ipv4.download.thinkbroadband.com/100MB.zip"
+    Url = "http://ipv4.download.thinkbroadband.com/100MB.zip",
+    Override = true
 })
 
 asset.syncedResource({
diff --git a/data/assets/scene/solarsystem/planets/earth/earth.asset b/data/assets/scene/solarsystem/planets/earth/earth.asset
index d7e8c4f6e3..b8cefd4c13 100644
--- a/data/assets/scene/solarsystem/planets/earth/earth.asset
+++ b/data/assets/scene/solarsystem/planets/earth/earth.asset
@@ -16,6 +16,7 @@ local Earth = {
         Type = "RenderableGlobe",
         Radii = earthEllipsoid,
         SegmentsPerPatch = 64,
+        PerformShading = false,
         Layers = {
             ColorLayers = {
                 {
diff --git a/ext/ghoul b/ext/ghoul
index 00a90d00d9..cae1e1ffbf 160000
--- a/ext/ghoul
+++ b/ext/ghoul
@@ -1 +1 @@
-Subproject commit 00a90d00d98f0ab3f76c6249642584c5226b6fa2
+Subproject commit cae1e1ffbf07003f07a313b2213cec1c1c8de9ae
diff --git a/modules/globebrowsing/globes/renderableglobe.cpp b/modules/globebrowsing/globes/renderableglobe.cpp
index de951c7da5..c5c12717e0 100644
--- a/modules/globebrowsing/globes/renderableglobe.cpp
+++ b/modules/globebrowsing/globes/renderableglobe.cpp
@@ -220,6 +220,10 @@ RenderableGlobe::RenderableGlobe(const ghoul::Dictionary& dictionary)
     dictionary.getValue(keySegmentsPerPatch, patchSegmentsd);
     int patchSegments = static_cast<int>(patchSegmentsd);
 
+    if (dictionary.hasValue<bool>("PerformShading")) {
+        _generalProperties.performShading = dictionary.value<bool>("PerformShading");
+    }
+
     // Init layer manager
     ghoul::Dictionary layersDictionary;
     if (!dictionary.getValue(keyLayers, layersDictionary)) {
diff --git a/modules/sync/syncs/urlsynchronization.cpp b/modules/sync/syncs/urlsynchronization.cpp
index d261ae1119..0bb99d140d 100644
--- a/modules/sync/syncs/urlsynchronization.cpp
+++ b/modules/sync/syncs/urlsynchronization.cpp
@@ -39,6 +39,7 @@
 namespace {
     constexpr const char* KeyUrl = "Url";
     constexpr const char* KeyIdentifier = "Identifier";
+    constexpr const char* KeyOverride = "Override";
 } // namespace
 
 namespace openspace {
@@ -63,6 +64,16 @@ documentation::Documentation UrlSynchronization::Documentation() {
                 "This optional identifier will be part of the used folder structure and, "
                 "if provided, can be used to manually find the downloaded folder in the "
                 "synchronization folder."
+            },
+            {
+                KeyOverride,
+                new BoolVerifier,
+                Optional::Yes,
+                "If this value is set to 'true' and it is not overwritten by the global "
+                "settings, the file(s) pointed to by this URLSynchronization will always "
+                "be downloaded, thus overwriting the local files. This is useful for "
+                "files that are updated regularly remotely and should be fetch at every "
+                "startup."
             }
         }
     };
@@ -101,6 +112,10 @@ UrlSynchronization::UrlSynchronization(const ghoul::Dictionary& dict,
     else {
         _identifier = std::to_string(hash);
     }
+
+    if (dict.hasValue<bool>(KeyOverride)) {
+        _forceOverride = dict.value<bool>(KeyOverride);
+    }
 }
 
 UrlSynchronization::~UrlSynchronization() {
@@ -116,7 +131,7 @@ void UrlSynchronization::start() {
     }
     begin();
 
-    if (hasSyncFile()) {
+    if (hasSyncFile() && !_forceOverride) {
         resolve();
         return;
     }
diff --git a/modules/sync/syncs/urlsynchronization.h b/modules/sync/syncs/urlsynchronization.h
index 639fa1b1d3..5e7c458ea3 100644
--- a/modules/sync/syncs/urlsynchronization.h
+++ b/modules/sync/syncs/urlsynchronization.h
@@ -55,6 +55,7 @@ private:
     std::string directory() override;
 
     std::vector<std::string> _urls;
+    bool _forceOverride = false;
     std::string _synchronizationRoot;
     std::string _identifier;
 
diff --git a/tests/regression/517.inl b/tests/regression/517.inl
index 774f842459..cf28d26f79 100644
--- a/tests/regression/517.inl
+++ b/tests/regression/517.inl
@@ -31,8 +31,8 @@ TEST_F(Issue527, Regression) {
     openspace::properties::OptionProperty p({ "id", "gui", "desc"});
 
     p.addOptions({
-        {-1, "a" },
-        {-2, "b" }
+        { -1, "a" },
+        { -2, "b" }
     });