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

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# Invert colors on a page

To swap black for white, white for black, and so on, press the menu button in the top-right corner of the window and select Night Mode.

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