initialize standalone OpenFL application structure with essential files and configurations

standalone-openfl-app/src/Main.hx

@@ -0,0 +1,19 @@
+package;
+
+import openfl.events.EventDispatcher;
+import openfl.display.Sprite;
+import openfl.events.Event;
+import openfl.display.DisplayObjectContainer;
+import openfl.events.MouseEvent;
+
+class Main extends Sprite
+{
+    public function new()
+    {
+        super();
+        dispatchEvent(new openfl.events.Event(openfl.events.Event.ADDED_TO_STAGE, false, false));
+        graphics.beginFill(0xFFF00F, 1);
+        graphics.drawRect(0, 0, 800, 600);
+        graphics.endFill();
+    }
+}