dynastic color, creating a visual contrast to the ʿAbbasid enemy [...] white became the Shiʿite color, in deliberate opposition to the black of the ʿAbbasid
Digital Color Photo Into BlackandWhite (页面存档备份,存于互联网档案馆), includes a background on color filter use in traditional film photography, how blackandwhite conversion
White & Gold or Black & Blue? The Internet Is Going Insane Trying To Find Out – PHOTO. Bustle. 2015-02-26 [2018-06-08]. (原始内容存档于2017-08-21). Color Bind: