图标

http://www.iconfont.cn/
http://www.iconpng.com/
http://www.easyicon.net/
https://thenounproject.com/ 

 

 

https://github.com/MahApps/MahApps.Metro.IconPacks
https://github.com/MahApps/MahApps.Metro.IconPacks

 
 



https://github.com/seayxu/FontAwesome
https://github.com/seayxu/FontAwesome 

 

 

 

http://www.cnblogs.com/jiujiaoyangkang/p/4766724.html 图标自适应 

 http://www.cnblogs.com/liulun/p/4217664.html