dotfiles/.config/surf/styles/defdark.css

 *,div,pre,textarea,body,input,td,tr,p {
     background-color: #202020 !important;
     background-image: none !important;
     color: #bbbbbb !important;
 }
 h1,h2,h3,h4 {
     background-color: #202020 !important;
     color: #b8ddea !important;
 }
 img {
     opacity: .5;
 }
 img:hover {
     opacity: 1;
 }