Exactly! How do you think I hunt down these class and ID names? I certainly don't know anything about Laza's internal coding. I make a quick one-image test album with a comment or title, preview it, pull up the browser development console, and zero in on the displayed comment or title. That leads me to the correct CSS. Guessing will
never get you there.
In this case, it's this:
#lightbox .cards .card .caption.dark a {color:red;}
#lightbox .cards .card .caption.dark a:hover {color:green;}
Depending upon the style of Animatics you're using, it might be
caption.light instead of
caption.dark.
Now use your own browser development console and poke around so that you can learn how this is done. Take a look at the slide image, and use the "inspector" to see where I got the right class or ID!