For those that want to understand what the diacritical marks on letters are when Arabic is transliterated, a very good article:

https://siblingsofilm.com/arabic-diacritical-marks/

Understanding Arabic Diacritics & How To Install On Microsoft Word
When reading the transliteration of any language it may be more difficult than it seems. Not only would we be pronouncing some of the words wrong we could also be changing the meaning. Therefore understanding Arabic diacritical marks and macrons can be extremly beneficial - for both the reader and the writer....