Android Question fill with color - CanvasView

Hello, i used this lib from @Johan Schoeman some time ago and now i want to use again, but i would like to know if there is a way to make an option to paint some part of the my drawing with fill and not only where pass with finger. Like the tool that program "Paint" have, see the image.

In the image, the name of tool is "fill with color".

https://www.b4x.com/android/forum/threads/canvasview.76588/#post-485887

Thanks.