Hi,
I can reproduce your problem. When I set the x-ms-webview background to alicebluethen
use the capturePreviewToBlobAsync to capture the snapshot of the
x-ms-webview as a bitmap, the bitmap I get has
aliceblue background.
But when I set the x-ms-webview background to transparency, the bitmap I get has white background.
And I also test the problem in windows store app with C#, the problem also occurs.
I think that may be a bug in windows store app.
Best Wishes!
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