Windows 10 Open/Save Dialog Box and StartButton Issues

[jwilco]

I am working on a theme for Windows 10 build 10586 to mimic Mac OS X and I stumbled upon something odd and I need your help.

When I go to upload a graphic to this forum I get the open dialog box below



This dialog box should look like this one that shows up when I try to open or save a file in WSB or any other program


What happened here to the folderband and the propertree background? how can I fix this so it works right?


Also I have a question about skinning the windows 10 start button

I changed the images at Unknown --> TaskbarPearl --> 1 and 2 but when I hover over it or press the button it is a solid color instead of my image. How do I fix this?

Starbutton Normal


Startbutton Hover


Starbutton Pressed