Agent: Mozilla/5.0 (X11; CrOS x86_64 13505.63.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36
Bug Description
Twitter doesn't retain darkness as you scroll you end up with both sides of the page back to the default/white background while the font/lettering is still set to the darkness, making it impossible to read, while the center of the page, as you scroll, remains dark.
Screenshots
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