For Opera users, you can change the styling of any page to black-on-white: In Opera stable, it's view -> style -> High Contrast (B/W). In the beta, it's page

For Opera users, you can change the styling of any page to black-on-white: In Opera stable, it's view -> style -> High Contrast (B/W). In the beta, it's page tools -> style -> High Contrast (B/W).