How to use this library to highlight a rectangular shape?

[masum43]

I am not able to use this library to highlight a rectangular shape. Can anyone help me?

[Gasmain]

have you find a work arround ?

[huaweikai]

You can take a look at my fork warehouse, I just implemented it briefly, see if it helps you

[Devenom1]

@huaweikai Thank you. Love what you've done.