<box>: support different icon sizes

[damithc]

e.g., icon-medium icon-large etc.?

[yash-chowdhary]

I'd like to work on this issue.
I wanted to clarify the size specifications.

Here's a preview of the 3 sizes (small, medium, large):

1. default (small)

2. icon-medium (font-size = 2em)

3. icon-large (font-size = 4em)

Are these sizes appropriate?

[damithc]

We can try large as 3em and extra-large as 4em?

[yash-chowdhary]

Sure 👍

[yamgent]

Re-opening because the docs hasn't been updated yet to explain this feature.