https://blog.wongcw.com/2018/10/11/%e5%be%ae%e8%bd%af%e5%8f%91%e5%b8%83fluent-xaml%e4%b8%bb%e9%a2%98%e7%bc%96%e8%be%91%e5%99%a8%e7%9a%84%e9%a6%96%e4%b8%aa%e9%a2%84%e8%a7%88%e7%89%88%e6%9c%ac/