gallery background color

Hi, sorry if this has been answered elsewhere already – I couldn’t find it.

I’m trying to change the background color for one of my galleries. Right now it defaults to white, like the rest of my site. I would like the slides in this gallery in particular to have a black background, while not affecting any others. I tried using the dsframework-album-background-color custom field, but no luck.

Thanks for your help and this theme! I’ve finally found a theme I love!