Answer 1

Tom Joney (TheCoder) Regarding the button shape itself, if you can draw that shape in a vector graphics tool like Adobe Illustration or InkScape, you may be able to convert the SVG to XAML. You may also find some vector graphics of the button shape online.

I'm not sure if this approach will work, but I did find the following libraries / utilities. There may be more:

https://marketplace.visualstudio.com/items?itemName=AB4D.ReaderSvg-theultimatesvgimporter

https://www.ab4d.com/ViewerSvg.aspx

https://github.com/BerndK/SvgToXaml

https://github.com/vvvv/SVG

Answer 2

Tom Joney (TheCoder) You should be able to create a ControlTemplate for the button control to apply custom paths to draw the shape you're looking for.

Here are a few links to get you started:

https://docs.microsoft.com/en-us/dotnet/framework/wpf/controls/#changing-the-appearance-of-a-control

https://docs.microsoft.com/en-us/dotnet/api/system.windows.controls.controltemplate

The tricky part will be in using the path markup language to define the custom shape for the button.

https://docs.microsoft.com/en-us/dotnet/framework/wpf/graphics-multimedia/path-markup-syntax

Other Relevant References:

https://docs.microsoft.com/en-us/dotnet/framework/wpf/graphics-multimedia/shapes-and-basic-drawing-in-wpf-overview

https://docs.microsoft.com/en-us/dotnet/framework/wpf/graphics-multimedia/geometry-overview

Answer 3

Tom Joney (TheCoder) Here are some graphics you might be able to use, purchase, derive from, experiment with..

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Vector Graphic Images:
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https://worldvectorlogo.com/logo/simon-game-logo

https://stock.adobe.com/hu/images/retro-technology-icons-simon-says-ultra-color/158605693

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PNG / JPG Images:
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https://favpng.com/png_view/echo-simon-memory-challenge-clip-art-vector-graphics-simon-free-simon-says-game-png/Ktd0gFQw

https://cdn.dribbble.com/users/380540/screenshots/1778330/simon.jpg

https://img.pngio.com/linkbunch-04o31-http-linkbunch-04o31-simon-says-png-392_400.png