Added support for Arabic fonts through Noto Naskh Arabic.

includes/SkinCitizen.php

@@ -167,5 +167,10 @@ private function buildSkinFeatures( array &$options ) {
 		if ( $this->getConfigValue( 'CitizenEnableCJKFonts' ) === true ) {
 			$options['styles'][] = 'skins.citizen.styles.fonts.cjk';
 		}
+
+		// AR fonts
+		if ( $this->getConfigValue( 'CitizenEnableARFonts' ) === true ) {
+			$options['styles'][] = 'skins.citizen.styles.fonts.ar';
+		}
 	}
 }

resources/skins.citizen.styles.fonts.ar/ar.less

@@ -0,0 +1,10 @@
+/* stylelint-disable function-url-quotes */
+
+/* [0] */
+@font-face {
+	font-family: 'Noto Naskh Arabic';
+	font-style: normal;
+	font-weight: 100 1000;
+	src: url( 'fonts/NotoNaskhArabic[wght].woff2' ) format( 'woff2-variations' );
+	font-display: swap;
+}

resources/skins.citizen.styles.fonts.ar/index.less

@@ -0,0 +1,12 @@
+/*
+ * Name: Noto Naskh Arabic
+ * Version: 568609b
+ * Link: https://github.com/notofonts/arabic/tree/main
+ * Axis: wght
+*/
+
+@import 'ar.less';
+
+:root {
+	--font-family-language-base: 'Noto Naskh Arabic';
+}

skin.json

@@ -118,6 +118,22 @@
 				"resources/skins.citizen.styles.fonts.cjk/index.less"
 			]
 		},
+		"skins.citizen.styles.fonts.ar": {
+			"class": "ResourceLoaderSkinModule",
+			"targets": [
+				"desktop",
+				"mobile"
+			],
+			"features": {
+				"accessibility": false,
+				"content-body": false,
+				"interface-core": false,
+				"toc": false
+			},
+			"styles": [
+				"resources/skins.citizen.styles.fonts.ar/index.less"
+			]
+		},
 		"skins.citizen.scripts": {
 			"packageFiles": [
 				"resources/skins.citizen.scripts/skin.js",
@@ -629,6 +645,12 @@
 			"descriptionmsg": "citizen-config-enablecjkfonts",
 			"public": true
 		},
+		"EnableARFonts": {
+			"value": false,
+			"description": "Enable included Noto Naskh Arabic for wikis that serve Arabic",
+			"descriptionmsg": "citizen-config-enablearfonts",
+			"public": true
+		},
 		"EnablePreferences": {
 			"value": true,
 			"description": "Enables or disable preferences module",