You can customize the look of your signup pages in the website configuration area.
- log into the admin panel
- go to website
- click the Configuration tab
- click the Advanced tab
From this advanced tab, you can manage the overall look through the Customize basic site variables option, which allows you to define main color variables.
From this area, you see a number of fields related to your online forms. Edit the fields that are specific to forms and buttons. These should be pretty obvious. Here are a few:
- formhead_color - alters the text color of the header inside the form
- cta_bgcolor - alters the background color of the CTA (call to action) button
Alternatively, for more complete control, you can select Customize local css files, which allows you to completely control the look of your forms via direct editing of your css files.