This project is a canvas project on Netbeans. You need to add some new simple functionality to the project:
1. Layers, all the figures drawn in the canvas must have layers, so the user can put one above others, or below all of them or above one of them. apply layers logic to the figures
2. Change the thickness of the [login to view URL] user must be able to choose between normal, fine, thick or punctuated line
3. Add text, just like paint add text a a layer above or below figures
4. Make visible or invisible the tool palette.