/* Remove Olivero's background.svg and use a solid color */
body,
body.is-fixed {
  background-image: none !important;
  background-color: #242825; /* <- pick your color */
}

/* Optional: if you use dark mode, keep it solid there too */
@media (prefers-color-scheme: dark) {
  body,
  body.is-fixed {
    background-image: none !important;
    background-color: #242825; /* dark variant */
  }
}