Calendar wrap up colors

Is there a way to change the colors associated with each book in the calendar wrap up? I mostly read books with dark covers and my calendar ends up as just shades of gray... I have colors associated with each book in my head and I'd love to customize the calendar and make it more colorful. It's one of the coolest features of storygraph in my opinion and I'm making sure to update my progress every single day so I can have a nice complete calendar at the end of the month!