Course Color

I’ve setup LearnPress but need help with two items:

1) I’ve played with the CSS in Settings > Advanced and I cannot get the lesson background color changed. My page background is black, but the lesson background shows white: https://evolutionxma.com/course/test-course/ How/where do I change that color or make it transparent?

2) I’m using WishMember to control access to the courses so I’m marking them as no price and “No Requirement Enroll”, but it shows up as “FREE” under courses under https://evolutionxma.com/courses/ How can I rid of that?

The page I need help with: [log in to see the link]