Mailchimp plugin

HI there, i am using the mailchimp plugin and the form is super ugly. Does anyone know how to remove the * and the required field text, the preferred format text and also change the color of the button at the bottom?

I had some code for creating a form, which I have used on my home page but couldn’t figure out how to add in a background to it, so I thought I would use the mailchimp plugin.

If you have the code for creating the form with a background color that looks really good, I would appreciate it greatly.

Thank you so much