https://social.msdn.microsoft.com/Forums/en-US/d7c226e3-1e73-4b17-ab63-69186180009c/bug-captureelement-turns-black-when-loosing-focus-inside-contentdialog?forum=wpdevelop
https://social.msdn.microsoft.com/Forums/en-US/d7c226e3-1e73-4b17-ab63-69186180009c/bug-captureelement-turns-black-when-loosing-focus-inside-contentdialog?forum=wpdevelop