CONCRETE QUESTION

I have seen a patio that had added design on top, stamped and sealed
with something that makes the surface look like glass.

Does anyone know what it's called?

Does anyone know how to do it?

I just resurfaced my patio yesterday with Commecial Grade Quikrete. It
was a little pricey but 1/2 inch is extremely strong and will hold
over the aggregate surface that was there previously. The patio is 50
yrs old and had cracks and was not level. So, I remedied the matter,
but I'd like to pretty it up now.

I'd like to add color, and stamping and seal it with the glass like
finishing.

Can anyone help?

No one seems to know what I'm talking about at Lowe's or Home Despot.