How to apply Background Motion Art across the whole site

Preface: I'm still getting to grips with the way that Squarespace works.

I made an 'About' page and really like the background motion art, is there a way to apply it to all of my pages without having to go into the settings and re-create it every time that I make a new page?

Thank you Ziggy, yes that's great as I haven't made that many pages yet