Edit text and color of pop up/tab/info bar

I'd like to be able to edit the "Purple" color of the pop-up to any color to match my website design. I'd also like to be able to change the pop up "heading" from "Loyalty Program" to my own choice of words such as "ABC Points" In short, I would like to keep things very simple for customers. I'd like my "Tab" or "Information Bar" to just say "Earn Points" On the Pop up I'd like customers to see "ABC Points Program" in my website color and design.