v0.9.4: fixed cases of vertex buffers not being cleared

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/scenes/PixelScene.java

@@ -245,6 +245,7 @@ public class PixelScene extends Scene {
 			if ((time -= Game.elapsed) <= 0) {
 				alpha( 0f );
 				parent.remove( this );
+				destroy();
 			} else {
 				alpha( time / FADE_TIME );
 			}

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/ui/KeyDisplay.java

@@ -213,5 +213,12 @@ public class KeyDisplay extends Visual {
 		dirty = false;
 		
 	}
+
+	@Override
+	public void destroy() {
+		super.destroy();
+		if (buffer != null)
+			buffer.delete();
+	}
 	
 }