It is built to WCAG 2.1 and 2.2 AA, and in v0.9 we audited it against that standard on this very page rather than on paper. You can play a whole quiz from the keyboard: number keys pick an answer, arrow keys move within a question, and the focus follows you when you start, when your result appears and when you play again. Answers announce what kind of choice they are, so a screen reader says whether you may pick one or several, and the group is named after the question it belongs to. Colours are worked out rather than assumed: the element measures your accent against the background behind it and picks a readable counterpart, so the labels stay legible whatever colours your theme uses. Every button is at least 44 pixels, the layout holds from 320 pixels up and at 200 percent text size, and animation stops for anyone who asks their system for less motion.