Thanks for writing in!
1.) You have added a custom css in the page. Please edit the page back in Pro editor and replace the pink color to a transparent gray color in the custom css:
2.) You can add menu items in Appearance > Menus. If you need to display icons and menus for your header, you will have to edit it using the custom header builder. If you are not familiar with the header builder yet, please check this out:
Hope this helps.