We are really sorry to inform you that we haven’t kept this feature recently in our theme, so that we haven’t keep the phone number in demo also, but you can edit the theme file with the help of child theme or you can concern to the near by developer for it. But we will add this feature soon in our theme. We hope you understand.
For the background image please use the following css to fix your issue;
background-color: rgba(0, 0, 0, 0) !important;
background-color: rgba(255, 255, 255, 0.03) !important;
NOTE: Please use the child theme style.css or custom css plugin to write the css.