hieu, best place to get support is github. Were you installing the SDK in a WIndows Store app, or a desktop app. The SDK you were installing is the UWP one. For desktop apps, we don't have a nuget package; the way to reference on desktop is to add a reference to C# project.
Hi UserVoice.. Our partnerships w/ Monogame, Unity, Marmalade, Epic, Cocos, ANGLE, and many other middleware/frameworks providers is where we are focused on gaming.. I would not expect an update to XNA.
@Ariel, bob is right that you will need to tweak the template. With Blend this will be straight forward. I am guessing the brush you are looking for in the template is ToggleSwitchThumbBackgroundThemeBrush .. I recommend you alter the template and replace it (instead of altering the brush).. but either will work, just make sure you do it within the scope that only alters your controls (with this brush it might be safe since it is very specific to toggleswitch
Daniel Dacey, thanks for the feedback.. I have passed it along.. we are definitely working on some of the items you are mentioning ... The platform definitely has a lot great features so I would advise not to discount it for the short term.. You can write some great apps in this release.. there is lots of them in the sore already...