Cavern Fighter 2 - Map Editor

I've recently started work on a map editor for my new game (Cavern Fighter 2). Some of the game code has been completed but I have now got to a stage where I need some test data to display the cave walls. The old map editor did its job well enough but after designing hundreds of screens it soon highlighted some shortcomings. I decided to rectify those problems by designing a new editor from scratch. This application also makes good use of my "Games Library" and has helped me to add some extra functionality to it. Shown below is a screen shot of the editor. It still needs a little more work but its much nicer to use.