Intuitively, it’s not too difficult to understand why this is the case. Remember that error-diffusion works in response to the relationship between the input value and the quantised value. In other words, the colour palette is already factored in during the dithering process. On the other hand, ordered dithering is completely agnostic to the colour palette being used. Images are perturbed the same way every time, regardless of the given palette.
Here are common examples you'll run into across the difficulty levels:
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Жители Санкт-Петербурга устроили «крысогон»17:52
小时候买衣服鞋子的地方，门口写着“年久失修，请勿靠近”（图：南方人物周刊记者 刘璐明）
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Afghanistan launches border offensive against Pakistan，更多细节参见safew官方版本下载
// Receives chunks or null (flush signal)