Merge "File pages: Apply background in dark mode to file pages"

resources/src/mediawiki.action/mediawiki.action.view.filepage.less

@@ -197,3 +197,19 @@
 		height: auto;
 	}
 }
+
+@media screen {
+	html.skin-theme-clientpref-night {
+		#file img {
+			background-color: #c8ccd1;
+		}
+	}
+}
+
+@media screen and ( prefers-color-scheme: dark ) {
+	html.skin-theme-clientpref-os {
+		#file img {
+			background-color: #c8ccd1;
+		}
+	}
+}