userContent.css

/* AUR */
@-moz-document domain("aur.archlinux.org") {

	.keyword:link {
		background-color: var(--bg-color) !important;
	}

	#archnavbarlogo {
		background: url('https://aur.archlinux.org/css/archnavbar/archlogo.png') !important;
	}

	#archnavbar.anb-aur ul li#anb-aur a {
		color: var(--highlight-color) !important;
	}
}

/* Wiki */
@-moz-document domain("wiki.archlinux.org") {

	#content {
		background: var(--secondary-bg-color) !important;
		color: var(--fg-color) !important;
		border: 0px solid !important;
	}

	#archnavbar ul li.anb-selected a {
		color: var(--highlight-color) !important;
	}

	table.wikitable > tr > th, table.wikitable > * > tr > th {
		background-color: var(--bg-color) !important;
		color: var(--fg-color) !important;
	}

	table.wikitable {
		color: var(--fg-color) !important;
	}

	fieldset {
		border: 0px solid !important;
	}

	table {
		background-color: var(--secondary-bg-color) !important;
	}

	#content table {
		color: var(--fg-color) !important;
	}

	.mw-changeslist-legend {
		border: 0px solid !important;
	}

	div.archwiki-template-meta-related-articles-start > p {
		background-color: var(--bg-color) !important;
		color: var(--secondary-fg-color) !important;
		border-bottom: 5px var(--highlight-color) solid !important;
	}
	
	.mw-ui-input:focus {
		border-color: var(--highlight-color) !important;
		border-radius: 0px !important;
		box-shadow: inset 0 0 0 1px var(--secondary-bg-color) !important;
	}

	.mw-ui-input {
		background-color: var(--bg-color) !important;
		color: var(--fg-color) !important;
		border: 1px var(--secondary-bg-color) solid !important;
		border-radius: 0px !important;
		box-shadow: inset 0 0 0 0.1em var(--secondary-bg-color) !important;
	}
}

/* Global */
@-moz-document domain("archlinux.org") {

	/* Adjust your colors here*/
	:root {
		--bg-color: #141414;
		--fg-color: #9e9e9e;
		--secondary-bg-color: #191919;
		--secondary-fg-color: #616161;
		--highlight-color: #752a2a;
		--secondary-hl-color: #AC4142;
		--third-hl-color: #90A959;
	}

	body {
		background-color: var(--bg-color) !important;
		color: var(--fg-color) !important;
	}

	code {
		background-color: var(--secondary-bg-color) !important;
		color: var(--fg-color) !important;
	}

	div.box {
		background: var(--secondary-bg-color) !important;
		border: 0px solid !important;
	}

	#archnavbar.anb-home ul li#anb-home a, #archnavbar.anb-packages ul li#anb-packages a, #archnavbar.anb-download ul li#anb-download a {
		color: var(--highlight-color) !important;
	}

	pre {
		border: 0px solid !important;
		background: var(--bg-color) !important;
		color: var(--secondary-fg-color) !important;
	}

	#news h3 a {
		background: var(--secondary-bg-color) !important;
		color: var(--secondary-fg-color) !important;
	}

	h3 span.arrow {
		border-top: 6px solid var(--highlight-color) !important;
	}

	#archnavbar {
		background: var(--secondary-bg-color) !important;
		border-bottom: 5px var(--secondary-bg-color) solid !important;
	}

	h2 {
		border-bottom: none !important;
	}

	#news h4 {
		border-bottom: 2px var(--secondary-bg-color) solid !important;
	}

	dl dt, dl dd {
		border-top: 0px solid !important;
		color: var(--secondary-fg-color) !important;
	}

	a:hover {
		text-decoration: none !important;
		color: var(--highlight-color) !important;
	}

	a:link, th a:visited {
		color: var(--secondary-fg-color) !important;
	}

	#pkgsearch {
		background: var(--secondary-bg-color) !important;
		color: var(--fg-color) !important;
		border: 0px solid !important;
	}

	#pkgsearch input {
		color: var(--fg-color) !important;
		background: var(--bg-color) !important;
		border: 0px solid !important;
	}

	table.results {
		border-top: 0px solid !important;
		border-bottom: 0px solid !important;
	}

	table {
		background-color: var(--secondary-bg-color) !important;
	}

	/* Packages */
	.results tr.even {
		background-color: var(--secondary-bg-color) !important;
		color: var(--fg-color) !important;
	}
	.results tr.odd {
		background-color: var(--bg-color) !important;
		color: var(--fg-color) !important;
	}
	.results th {
		border-bottom: 1px var(--fg-color) !important;
		background-color: var(--bg-color) !important;
	}

	#pkgdetails #metadata h3 {
		background-color: var(--secondary-bg-color) !important;
	}

	#pkgdetails #detailslinks > div {
		background-color: var(--secondary-bg-color) !important;
		border: 0px solid !important;
	}

	#content h1, h2, h3, h4, h5, h6 {
		color: var(--fg-color) !important;
		border-bottom: 0px solid !important;
	}

	div.vectorTabs li.selected {
		border: 0px solid !important;
		background-color: var(--bg-color) !important;
		background-image: none !important;
	}

	div.vectorTabs span {
		display: inline !important;
	}

	div.vectorTabs {
		background-image: none !important;
	}

	div#mw-panel div.portal div.body {
		background-image: none !important;
	}

	.catlinks {
	  border: 0px solid !important;
		background-color: var(--secondary-bg-color) !important;
	}

	div#footer ul li {
		color: var(--secondary-fg-color) !important;
	}

	div#simpleSearch {
		border: 0px solid !important;
		color: var(--fg-color) !important;
		background-color: var(--secondary-bg-color) !important;
		background-image: none !important
	}

	div#simpleSearch input {
		color: var(--fg-color) !important;
	}

	#content a:not(.new), #mw-navigation li:not(.new) a:not(.new), #mw-panel li:not(.new) a:not(.new), #column-one li:not(.new) a:not(.new), #footer a:not(.new) {
		color: var(--secondary-fg-color) !important;
	}

	#toc, .toc, .mw-warning, .toccolours {
		background-color: var(--bg-color) !important;
		border: 0px solid !important
	}

	.tocnumber {
		color: var(--fg-color) !important;
	}

	div.archwiki-template-box.archwiki-template-box-warning {
		background-color: var(--bg-color) !important;
		border-bottom: 5px var(--highlight-color) solid !important;
	}

	div.archwiki-template-box.archwiki-template-box-tip, div.archwiki-template-box.archwiki-template-box-note {
		background-color: var(--bg-color) !important;
		color: var(--fg-color) !important;
	}

	div.archwiki-template-box {
		color: var(--fg-color) !important;
		border: 0px solid !important;
	}

	div.archwiki-template-message {
		display: none !important;
	}

	hr {
		display: none !important;
	}

	.results .flagged {
		color: var(--secondary-hl-color) !important;
	}

	#pkgdetails #actionlist .flagged {
		color: var(--secondary-hl-color) !important;
	}

	.mw-plusminus-neg, .todo-table .incomplete, .signoff-no, #key-status .signed-no, #release-list .available-no {
		color: var(--secondary-hl-color) !important;
	}
	.mw-plusminus-pos, .todo-table .complete, .signoff-yes, #key-status .signed-yes, #release-list .available-yes {
		color: var(--third-hl-color) !important;
	}
}