I'm going to go for a free solution, maybe Mail chip at first. Watch some tutorials and see how I can integrate a subscription tab on my laytheme site www.selah.fr.
@domphilcox Thank you for the response. I'm not sure if I'm misunderstanding something, but simply inserting the code into the custom CSS does nothing except invert my current logo. However, it doesn't affect the background. Or am I misunderstanding something?