pkp#10616 Add ThemePlugin function to get localized theme option value

classes/plugins/ThemePlugin.inc.php

@@ -460,6 +460,22 @@ public function getOption($name) {
 		return isset($option->default) ? $option->default : null;
 	}
 
+	/**
+	 * Get the localized value of an option
+	 *
+	 * @param string $name The name of the option
+	 * @param string $localeKey (Optional) Get the value for a specific locale.
+	 *   If unset, it will return the current locale
+	 */
+	public function getLocalizedOption($name, $localeKey = null)
+	{
+		$localeKey = $localeKey ?? AppLocale::getLocale();
+		$value = $this->getOption($name);
+		return is_array($value) && isset($value[$localeKey])
+			? $value[$localeKey]
+			: null;
+	}
+
 	/**
 	 * Get an option's configuration settings
 	 *