Create a UI button that remains pressed when clicked, and go back when clicked again

Hello!

I would like to create a UI button that, when clicked, remains pressed, and when clicked again, returns to normal, the same way the BOLD button works, for example.

Is it possible?

I know how to make a button (icon and text). I'm using this guide to make my script:

https://vimeo.com/63760772

Thanks!