Documentation: make parameter types more obvious/uncollapsed by default for functions

^{Originally posted by leothorp June 4, 2022}
I was looking at https://react-select.com/props, and was initially stumped by what looked like a lack of any information on function parameters. This screenshot shows an example of what I saw:

Eventually I happened to mouseover the ... and realized it can be clicked to be expanded. I think this is not obvious. a faint ... doesn't look like a clickable UI element, and primitive types (like the return value here) are already shown as normal, so it didn't occur to me I had to click something to see parameter types. The same comment applies to object/nested types, clicking at further levels inside wasn't very discoverable.

Can we consider either expanding the first level of these by default, or making it more obvious somehow that this is clickable? One easy fix that occurs to me is just replacing ... with something like (click to expand), or even just expand.

Thanks for reading.

Start at the react-select.com/props documentation page and inspect how function parameter and nested object types are rendered. Compare the collapsed ellipsis with the proposed expanded or clearer affordance, then verify that the first-level parameter types and deeper nested types are discoverable as intended.