MediaWiki:DarkNimbus.css

/* CSS placed here will affect users of the Nimbus night theme */

body { background: #070C20 url(https://halo.wiki.gallery/images/0/01/HP_Dark-bg.jpg) no-repeat fixed top / cover !important; }
 * 1) article-text a.external[href^="https://www.halopedia.org"] { color: #009CFF !important; }