Thanks to everyone pointing out that teaching racism was more expensive if it was in color. Thanks for missing the point.

Edit: There are color photos of the civil rights movements, but my middle school textbooks chose to only use the black and white ones of people getting shot with fire hoses and beaten with billy clubs. Every other page of this hard bound textbook had color pictures in it, so saying it would cost more is a straw man argument. Strange coincidence. https://www.usatoday.com/story/news/factcheck/2020/06/20/fact-check-most-civil-rights-era-images-werent-made-color/3210472001/