admin jenkins customization

admin-jenkins.css

#header {
  background-color: #B71C1C;
}
#jenkins-head-icon,
#jenkins-name-icon {
  display: none !important;
}
#jenkins-home-link {
  color: #fff;
  text-decoration: none;
  font-size: 18px;
  padding: 9px 0 0 9px;
}
#jenkins-home-link::after {
  content: "𓆣 Heka, Manifestation of Magic";
}

#side-panel-content::after {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  background-image: url(http://i.stack.imgur.com/o4SI7.png);
  width: 100%;
  height: 100%;
  opacity: 0.2;
  z-index: -1;
  background-repeat: no-repeat;
  background-position: 200px 15px;
}

admin-jenkins.js

document.title = 'ADMIN - ' + document.title;