Inverting the colors can make it easier to read some text.
Phil Bull
philbull@gmail.com
Anna Philips
anna.cs.au@gmail.com

Creative Commons Share Alike 3.0

# Invert colors on a page

To swap black for white, white for black, and so on, click the View options button in the top-right corner and select Inverted Colors.

Doing this can make it easier to read text, especially in the case of certain kinds of visual impairment.