Why is the opacity prop in the Backdrop not limited to the range between 0 and 1?

[AradSharafi]

Hi there!

I noticed that the opacity prop in the Backdrop component accepts a number but doesn't restrict this number to the typical range of 0 to 1. In most other libraries, opacity is constrained between 0 (fully transparent) and 1 (fully opaque).

Could you please explain the rationale behind allowing any number for the opacity prop? Is there a specific use case or flexibility intended with this design?

Thanks for your time and for this awesome library!