Boxes of search, name, message…

Hello, I have a problem in Catch Everest Pro with the boxes of search (widget) and name, email, website, message (plugin formidable) in my page of contact: they inherit a yellow colour in it's highlight mode and it's not posible to change it in anywhere. My design is based on grey scale and pink so it colour has nothing to do. Can anyone help me? Thank you very much and congratulations for this theme. It's really easy and you can get beautiful results in just two days.