gecko-dev/toolkit/themes/shared/aboutRights.css

/* Rights Illustration */

.rights-header {
  background-image: url("chrome://global/skin/illustrations/about-rights.svg");
  background-repeat: no-repeat;
  background-position: right center;
  min-height: 300px;
  display: flex;
  align-items: center;
  padding-inline-end: 320px;
}

.rights-header:dir(rtl) {
  background-position: left center;
}