wikipedia-dark-img-styles.user.css

/* ==UserStyle==
@name         Wikipedia Dark IMG Styles
@namespace    StylishThemes
@version      2.0.12
@description  Wikipedia Dark specific page brand/logo image style user overrides
@author       StylishThemes
@homepageURL  https://github.com/StylishThemes/Feature-Override-Styles/
@supportURL   https://github.com/StylishThemes/Feature-Override-Styles/issues/new/choose
@updateURL    https://raw.githubusercontent.com/StylishThemes/Feature-Override-Styles/master/wikipedia-dark-img-styles.user.css
@license      CC-BY-SA-4.0
==/UserStyle== */

@-moz-document regexp("https?:\/\/.*wik(i|t).*org.*") {
	.rootpage-Xubuntu a.image img[src*="Xubuntu_logo_and_wordmark"] {
		filter: invert(1) hue-rotate(180deg) contrast(80%);
		background: inherit !important;
	}
}