White ugly border

Question

Everytime I start my UWP I see this ugly white border over the button.

The buttn seems to be hover by default

I already tried to put BorderBrush={x:null} or transparent and border thickness to 0 but nothing

Answer 1

Hello,
Welcome to Microsoft Q&A!

It looks system focus visual border, you could try to set above element UseSystemFocusVisuals ="False" to disable this behavior.

Thank you.

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