diff -r d3285aed65b3 -r 44457f6cb0a2 src/window.c
--- a/src/window.c	Fri Mar 29 00:03:25 2024 +0100
+++ b/src/window.c	Mon Apr 01 18:54:19 2024 +0200
@@ -43,13 +43,6 @@
     settings->title = "Ascended Window";
 }
 
-static void asc_window_init_scenes(AscWindow *window) {
-    asc_scene_init(&window->ui);
-    asc_camera_ortho(&window->ui.cameras[0], (asc_recti){
-        0, 0, window->dimensions
-    });
-}
-
 AscWindow *asc_window_initialize(unsigned int index, AscWindowSettings const *settings) {
     if (index >= ASC_MAX_WINDOWS) {
         asc_error("Maximum number of windows exceeded.");
@@ -58,9 +51,13 @@
     AscWindow *window = &asc_context.windows[index];
     if (window->id > 0) {
         asc_error("Cannot create window - slot already occupied.");
-        asc_dprintf("Tried to create window with index %u", index);
+        asc_dprintf("Tried to create window with index %u twice", index);
         return NULL;
     }
+    if (window->ui != NULL) {
+        asc_dprintf("Window with index %u has a dangling UI pointer", index);
+        asc_scene_node_free(window->ui);
+    }
 
     Uint32 flags = SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN;
     flags |= settings->fullscreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : SDL_WINDOW_RESIZABLE;
@@ -86,9 +83,9 @@
     window->resized = true; // count initial sizing as resize
 
     if (asc_gl_context_initialize(&window->glctx, window->window, &settings->glsettings)) {
+        window->ui = asc_scene_node_empty();
         asc_dprintf("Window %u initialized", window->id);
         asc_context.active_window = window;
-        asc_window_init_scenes(window);
         return window;
     } else {
         asc_dprintf("Creating GL context failed for window %u", window->id);
@@ -110,7 +107,8 @@
     }
 
     // destroy all scenes
-    asc_scene_destroy(&window->ui);
+    asc_scene_node_free(window->ui);
+    window->ui = NULL;
 
     // release context related data
     asc_gl_context_destroy(&window->glctx);
@@ -136,8 +134,17 @@
         asc_window_activate(window);
     }
 
+    // Clear the color buffer for the window frame
+    int window_width = window->dimensions.width;
+    int window_height = window->dimensions.height;
+    glViewport(0, 0, window_width, window_height);
+    glClear(GL_COLOR_BUFFER_BIT);
+    asc_recti viewport = {0, 0, window_width, window_height};
+
     // Draw the UI
-    asc_scene_draw(&window->ui);
+    AscCamera ui_camera;
+    asc_camera_ortho(&ui_camera, viewport);
+    asc_scene_draw(window->ui, viewport, &ui_camera);
 
     // Swap Buffers
     SDL_GL_SwapWindow(window->window);