Keynote liquid glass with blur and refraction

Is there a way to create liquid glass elements in keynote presentations?

I’m trying to make a presentation, and I want to use the rounded rectangle objects as a ‘meta’ object or an object that i can put text in

I’ve been trying to look for some ways to get a Liquid Glass effect on those rounded rectangles

Unfortunately all I can do is change their transparency

Wondering if there is a way we can use them or modify them for them to behave like Liquid Glass - where they would blur the background and have refraction/reflections appropriate to the background

Looking forward to hearing some ideas