How to change the field border colors?

I am wondering whether I built this form originally with a different Jotform editor.    I seem to have orange borders to the fields the user completes.  Also the borders to the First and Last Name and email seem to have an ugly shadow on the top and one of the sides of each border.  How can I change this and control the colours?    Also I want to change the colours of the text in the buttons.  

You can manage the border colors through the Advanced Designer, example:

Let us know if you need more help.