Changing Type Setting on Gallery (Stripes) Image Captions / Overlay Hover Effect

Site URL: https://dolphin-springtail-544f.squarespace.com/

Is creating a hover overlay on gallery image captions—like the screenshot attached—possible?

I'll also attach a link to the hover overlay I would like in action - https://www.squarespace.com/designer/profile/3586977

Thanks in advance.

if you just want to show overlay + text on hover, I can give the code, but if you need the same effect as above, it is very time consuming.

You can also post on some groups on FB: Squarespace Customization Resource Group, Squarespace Community,..