Selected row outline

Hi.

Have successfully customised the contact form and I have no problems understanding what to do.
BUT… The outline that appears when you have selected a field don’t change at all and I can’t find anything about it nowhere. Probably cause it’s named differently or something.

Any suggestions how to change or remove that? The sites main colour is green (#00ae41) and I hope to make it in that colour. Somehow it appears as blue. Check out https://www.media300.no as an example.

The page I need help with: [log in to see the link]