Dos and don'ts: Designing for users on the autistic spectrum

Do

• use simple colours
• write in plain English
• use simple sentences and bullets
• make buttons descriptive - for example, Attach files
• build simple and consistent layouts

Don't

• use bright contrasting colours
• use figures of speech and idioms
• create a wall of text
• make buttons vague and unpredictable - for example, Click here
• build complex and cluttered layouts

Fuente: Dos and don'ts on designing for accessibility