Any gallery can have a Title and Description to go with the thumbs. To add this go to the MEDIA LIBRARY and double click any of your menu items. You will see a section called Thumbnail Overrides > Thumbnail Page options > Title block
NOTE: You'll need to use some html to make the title (<h1> or <h2> or <h3>) spaces (<br>) and any other fun stuff, but we can help you if you get stuck.
The settings for Background Color, Background Transparency, Font Family, Font Size and Font Color all are inherited from the OVERLAY tab in the LAYOUT panel. These settings are also used for the Index Thumb Labels, Inquiry Button overlay and Share Button overlay.
If you want to control the font settings separately there are new settings under the THUMBNAIL tab on the LAYOUT panel. If you scroll down you will see Title & Description Block Options where you can adjust the Font Family, Font Size, Font Color, and we've added Justification.