Larger images and captions in a gallery slideshow (Squarespace 7.1, Slideshow: simple, show captions, show thumbnails)

Need help with making my captions and images larger in a gallery slideshow. The default "L" image size is perfect but becomes much smaller as soon as I toggle on the captions. Also there does not appear to be any way to make the captions themselves larger or change the font style. 

Any code or workarounds would be super helpful! 

Squarespace 7.1, Slideshow: simple, show captions, show thumbnails

Hi,

Can you share link to page where you use slideshow?

Sure thing: https://tambourine-crocodile-4tse.squarespace.com/work/classics

That worked! Thank you very much!