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Editorial Team
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Asked: 2026-05-20T08:02:45+00:00

I’ve got several instances in my app where I’m using a png icon from

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I’ve got several instances in my app where I’m using a png icon from the standard wp7 icon library. I need to be able to alternate between light and dark versions of this png depending on the theme that the handset device is set to.

Now, I know how to detect the theme. However, how should I handle alternating between two versions of my images?

Do I create 2 different resource dictionaries and programatically switch between them in code? (honestly I have no clue how to do this)

Do I set some static resource “flag” somewhere based on what theme is detected?

I’m having some difficulty with my approach here, and would appreciate some guidance.

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1 Answer

  1. Editorial Team

    Here are some solutions:

    Option 1)
    You could use one image and OpacityMask so that your icons will remain consistent in both light/dark themes.

    Option 2) You can take a look at this discussion:
    LockedHow to change Metro icons based on selected theme

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