Tools for students with special needs (ex. dislexia)
To help learners with reading difficulties exists an open font that should be integrated in the editor (added to the font list) and used (with Arial and simple non-serif font types) by default for students that choose it in their options.
Another valuable tool would be the integration with a text reader that runs over the text changing background-color to the word that is pronouncing (it's plenty of such services free for education, like these: https://nordicapis.com/5-best-speech-to-text-apis/ ).
At least could be suggested to the usere the adoption of some external tool depending on the platform and browser used (like https://addons.mozilla.org/fi/firefox/addon/helperbird/?src=search for firefox).