Settings
Everything is saved automatically in your browser.
Theme
Color scheme for the whole app.
Key sounds
Soft click on each key, buzz on mistakes.
Virtual keyboard
On-screen keyboard that highlights the next key to press.
Hand hints
Little hands showing which finger to use.
Caret style
How the current character is highlighted.
Text size
Size of the typing text.
Error handling
Strict: you must fix every mistake before continuing. Forgiving: errors are marked and you keep going (Backspace to fix).