diff --git a/CMakeLists.txt b/CMakeLists.txt
index 386395bb..595a5d4c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,14 +10,14 @@ endif()
 # Main PROJECT definition
 project(
     rocky
-    VERSION 0.5.1
+    VERSION 0.5.2
     DESCRIPTION "Rocky by Pelican Mapping"
     HOMEPAGE_URL https://github.com/pelicanmapping/rocky
     LANGUAGES CXX C
 )
 
 # please update this with each ABI change!!
-set(PROJECT_VERSION_ABI 112)
+set(PROJECT_VERSION_ABI 113)
 
 # require C++17
 set(CMAKE_CXX_STANDARD 17)
diff --git a/data/fonts/times.vsgb b/data/fonts/times.vsgb
new file mode 100644
index 00000000..c3f83491
Binary files /dev/null and b/data/fonts/times.vsgb differ
diff --git a/src/apps/rocky_demo/Demo_Simulation.h b/src/apps/rocky_demo/Demo_Simulation.h
index b23ea8dc..a18ca294 100644
--- a/src/apps/rocky_demo/Demo_Simulation.h
+++ b/src/apps/rocky_demo/Demo_Simulation.h
@@ -38,6 +38,7 @@ namespace
 
     struct Declutter
     {
+        bool dummy = false;
     };
 
     class DeclutterSystem : public ECS::System
@@ -66,7 +67,7 @@ namespace
             sorted.clear();
             double ar = -1.0; // same for all objects
             auto view = registry.view<Declutter, Transform>();
-            for (auto& [entity, declutter, transform] : view.each())
+            for (auto&& [entity, declutter, transform] : view.each())
             {
                 if (transform.node)
                 {
@@ -115,7 +116,7 @@ namespace
         void resetVisibility()
         {
             auto view = registry.view<Declutter, ECS::Visibility>();
-            for (auto& [entity, declutter, visibility] : view.each())
+            for (auto&& [entity, declutter, visibility] : view.each())
             {
                 visibility.visible = true;
             }
@@ -211,7 +212,8 @@ auto Demo_Simulation = [](Application& app)
     {
         // add an icon:
         auto io = app.instance.io();
-        auto image = io.services.readImageFromURI("https://github.com/gwaldron/osgearth/blob/master/data/airport.png?raw=true", io);
+        //auto image = io.services.readImageFromURI("https://github.com/gwaldron/osgearth/blob/master/data/airport.png?raw=true", io);
+        auto image = io.services.readImageFromURI("https://user-images.githubusercontent.com/326618/236923465-c85eb0c2-4d31-41a7-8ef1-29d34696e3cb.png", io);
         status = image.status;
         if (image.status.ok())
         {
@@ -280,7 +282,7 @@ auto Demo_Simulation = [](Application& app)
 
         if (sim.declutterEnabled)
         {
-            ImGuiLTable::SliderDouble("  Buffer size", &sim.declutter.buffer, 0.0f, 0.03f, "%.3f");
+            ImGuiLTable::SliderDouble("  Separation", &sim.declutter.buffer, 0.0f, 0.03f, "%.3f");
             ImGuiLTable::SliderFloat("  Frequency", &sim.declutter_hertz, 1.0f, 30.0f, "%.0f hz");
             ImGuiLTable::Text("  Visible", "%ld / %ld", sim.declutter.visible, sim.declutter.total);
         }
diff --git a/src/rocky/CMakeLists.txt b/src/rocky/CMakeLists.txt
index 43ac6a4b..852a8e0f 100644
--- a/src/rocky/CMakeLists.txt
+++ b/src/rocky/CMakeLists.txt
@@ -25,7 +25,8 @@ endmacro()
 file(GLOB HEADERS_CONTRIB contrib/*.h)
 file(GLOB SOURCES_CONTRIB contrib/*.cpp)
 
-
+# data files to install
+list(APPEND DATA_FILES "${PROJECT_SOURCE_DIR}/data/fonts/times.vsgb")
 
 
 # find dependecies ----
@@ -256,6 +257,7 @@ install(
 # installs the default headers.
 install(FILES ${HEADERS_CORE} DESTINATION include/rocky)
 install(FILES ${HEADERS_CONTRIB} DESTINATION include/rocky/contrib)
+install(FILES ${DATA_FILES} DESTINATION share/rocky/data)
 
 # installs the VSG headers and shaders.
 if(ROCKY_RENDERER_VSG)
diff --git a/src/rocky/vsg/ECS.h b/src/rocky/vsg/ECS.h
index a6af235e..c04d55a4 100644
--- a/src/rocky/vsg/ECS.h
+++ b/src/rocky/vsg/ECS.h
@@ -17,7 +17,7 @@
 #include <chrono>
 #include <type_traits>
 
-#define ENTT_NO_ETO
+//#define ENTT_NO_ETO
 #include <entt/entt.hpp>
 
 namespace ROCKY_NAMESPACE
@@ -359,16 +359,20 @@ namespace ROCKY_NAMESPACE
         template<typename T>
         inline void SystemNode_on_construct(entt::registry& r, entt::entity e)
         {
-            // Add a visibility tag
-            r.emplace<ECS::Visibility>(e);
+            T& new_component = r.get<T>(e);
 
-            T& comp = r.get<T>(e);
+            // Add a visibility tag (if first time dealing with this entity)
+            // I am not sure yet how to remove this in the end.
+            if (!r.try_get<ECS::Visibility>(e))
+            {
+                r.emplace<ECS::Visibility>(e);
+            }
 
             // Create a Renderable component and attach it to the new component.
-            comp.entity = r.create();
-            r.emplace<ECS::Renderable>(comp.entity);
+            new_component.entity = r.create();
+            r.emplace<ECS::Renderable>(new_component.entity);
 
-            comp.revision++;
+            new_component.revision++;
         }
 
         template<typename T>
@@ -377,7 +381,8 @@ namespace ROCKY_NAMESPACE
             T& comp = r.get<T>(e);
             r.remove<ECS::Renderable>(comp.entity);
 
-            r.remove<ECS::Visibility>(e);
+            // Only want to remove it if there are no more components on this entity. I guess.
+            //r.remove<ECS::Visibility>(e);
         }
     }
 
diff --git a/src/rocky/vsg/InstanceVSG.cpp b/src/rocky/vsg/InstanceVSG.cpp
index 48ba6745..ccee4ee7 100644
--- a/src/rocky/vsg/InstanceVSG.cpp
+++ b/src/rocky/vsg/InstanceVSG.cpp
@@ -276,11 +276,19 @@ InstanceVSG::ctor(int& argc, char** argv)
 
     // For system fonts
     runtime.readerWriterOptions->paths.push_back("C:/windows/fonts");
+    runtime.readerWriterOptions->paths.push_back("/etc/fonts");
+    runtime.readerWriterOptions->paths.push_back("/usr/local/share/rocky/data");
 
     // Load a default font if there is one
     auto font_file = util::getEnvVar("ROCKY_DEFAULT_FONT");
     if (font_file.empty())
+    {
+#ifdef WIN32
         font_file = "arial.ttf";
+#else
+        font_file = "times.vsgb";
+#endif
+    }
 
     runtime.defaultFont = vsg::read_cast<vsg::Font>(font_file, runtime.readerWriterOptions);
     if (!runtime.defaultFont)