As did Engelbart's NLS, as seen in ‘the mother of all demos’. https://www.youtube.com/watch?v=yJDv-zdhzMY https://www.youtube.com/watch?v=yJDv-zdhzMY What litt

As did Engelbart's NLS, as seen in ‘the mother of all demos’. https://www.youtube.com/watch?v=yJDv-zdhzMY https://www.youtube.com/watch?v=yJDv-zdhzMY What little actual research exists suggests dark on light is more readable for people with normal vision. People with cataracts benefit from light on dark, and people with astigmatism benefit from dark on light.