html,body{
  background-image:linear-gradient(rgba(246,250,255,.12),rgba(235,243,255,.08)),url('/img/themes/blue-light.jpeg')!important;
  background-size:cover!important;
  background-position:center center!important;
  background-repeat:no-repeat!important;
  background-attachment:fixed!important;
}
@media (prefers-color-scheme:dark){
  html,body{background-image:linear-gradient(rgba(4,7,15,.14),rgba(4,7,15,.26)),url('/img/themes/blue-dark.jpeg')!important}
}