title: Why does DisplayInformation.RawPixelsPerViewPixel = .83 for Windows 8.1 apps in Windows 10?
body: <p>When I run my Windows 8.1 targeted app in Windows 10, <code>RawPixelsPerViewPixel=0.83</code> and everything is slightly scaled down.</p>
  
  <p>If I target the same app to Windows 10 (create a Universal Windows App), then <code>RawPixelsPerViewPixel=1</code> and everything is slightly larger.</p>
  
  <p><code>DisplayInformation.LogicalDpi</code> also changes from 79.63 to 96 when I switch between the Windows 8.1 and Universal Windows App.</p>
  
  <p>The app looks better on Windows 10 if it is scaled to .83, and I want to re-target to Windows 10 for the new APIs. I don't want to have to resize everything though. Is there anyway to control or change this value? How is it calculated and why does it change?</p>
  
  <p>I want to continue supporting Windows 8.1 and Windows 10. Currently I'm going through and externalizing all of the widths/heights/margins/fonts so the Windows 8.1 target can remain the same size while I manually reduce the size of everything in the Windows 10 target. Is there a better way of doing this?</p>