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

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Woodman Tuen
wmtuen@gmail.com 2005-06
Abel Cheung
abel@oaka.org 2003-04
趙惟倫
bluebat@member.fsf.org 2013

# Invert colors on a page

To swap black for white, white for black, and so on, go to the View menu and select Invert Colours (or press Ctrl I).

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