Dark theme (ClassAdapt)
Light is best for projectors; dark suits personal screens.
Colour overlay (Irlen)
Reduces visual stress for some readers.
Colour-vision filter
Adjusts colours for colour-blindness.
Off
Protanopia
Deuteranopia
Tritanopia
Reading ruler
Highlight strip that follows your cursor.
Dyslexia-friendly spacing
Wider letter and line spacing.
Reduce motion
Calmer animation, fewer particles.
Extra slow
Halves the simulation speed.