Settings sets the text size (100, 125 or 150 %) and the key of each button, kept in this browser's storage and validated on load. Every font size scales with --text-scale, and the dialogue box scrolls instead of growing past the screen. The game screen's label, the Play message and Help's control list name the current keys. Screen reader announcements for every native screen and touch control remapping remain. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>