[Plugin: Constant Contact for WordPress] Need to remove background and border

I have installed constant contact and started building forms. I need two different forms on website. I tried to build first form and saved form. It doesn’t showed me this form as “Tab”. It is not allowing me to create new form.

I also want to remove background color (need transparent background) and borders but don’t see that options.

http://ww.wp.xz.cn/extend/plugins/constant-contact-api/