OpticQuiz Corrector OpticQuiz

OpticQuiz Corrector re-colours your whole display so colours that collapse together for colour-vision deficiency become distinguishable. It applies to everything on screen - games, PDFs, video, and other applications - not only web pages, and runs from the system tray. Three correction modes (deuteranopia, protanopia, tritanopia) plus a balanced mode for people who do not know their type. The transform is a published, open-access method (Machado 2009 simulation with CIEDE2000, DOI 10.5281/zenodo.21310578). The matrices used here are derived specifically for the colour space Windows applies them in, which differs from the browser. Reusing the browser matrices measured worse, so this ships its own. This is an accessibility aid, not a cure or a medical device. It makes colours easier to tell apart; it does not restore colour vision.