无损压缩PNG工具
http://nullice.com/archives/1998
http://nullice.com/archives/1998
http://nullice.com/limitPNG/
https://pngquant.org/ 目前在用
压缩JS
https://blog.csdn.net/u010067685/article/details/53033353
BMFont制作位图字体
https://www.cnblogs.com/tinytiny/p/3670074.html