'lang_scheme'	=> [
	'name'		=> 'العربية',
	'code'		=> 'ar',
	'dir'		=> 'rtl',
	'locale'	=> 'ar_EG',
],	

Crowdin

• https://crowdin.com/project/wackowiki/ar

GitHub

• admin/lang/ap.ar.php
• js/lang/wikiedit.ar.js
• lang/wacko.ar.php
• setup/lang/inserts.ar.php
• setup/lang/installer.ar.php

Pre-TM issues

• replace 1% → %1