It should be very easy to do this but I haven\'t found the information that I need. What I want is as simple as changing the color of the slider bar:
Windows 8.1 Store/Phone Apps.
Add this to the App.xaml and change the color values to your liking:
You probably only want to change the slider for the default theme and probably only the three color values shown above. For all colors / resources that you can change, see this link at MSDN: Slider styles and templates.