https://zh.wikipedia.org/zh-tw/%E7%AD%86%E9%A0%86
https://stroke-order.learningweb.moe.edu.tw/home.do
http://www.learnchineseeveryday.com/2009/05/09/types-of-strokes-in-chinese-characters/
https://github.com/chanind/hanzi-writer
https://github.com/cburgmer/cjklib
https://chinese.stackexchange.com/questions/14101/stroke-order-database
https://en.wikipedia.org/wiki/Stroke_order
https://koreanmedals.com/chinese-font-styles-and-aids/
https://www.researchgate.net/figure/Stroke-order-reasoning-result-of-the-most-complicated-Chinese-character-in-the-database_fig2_317803100
https://zdt.sourceforge.net/
https://www.archchinese.com/how_to_write_chinese.html
https://github.com/skishore/makemeahanzi