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windows-store-appsappbarwin-universal-app

Appbar guidance results in "Invalid qualifier: SCALE-240"

The Windows universal app guidance for app bars suggests you include app bar icons are 100 scale (32x32), 140 scale (45x45) and 240 scale (77x77) icons.

Screen grab from guidance

The issue is that when I include a 240 scale I get the following warning when I compile: Invalid qualifier: SCALE-240

It seems to me that the scale is not supported. My question then is should I include it, remove it or change to a different scale (perhaps 180)?

Solution

  • Scale-240 is recommended for Windows Phone apps and works there (the default templates provide Scale-240 assets). Windows Store apps typically use scales-80,100,150, and 180. See How to name resources using qualifiers

    The Scale-240 asset won't cause any problems at runtime, but will be ignored on Windows. You'll definitely want to include other scales instead or with it.