Awesome

UWP-Square-of-Squares-Control

A square XAML panel to host several (21) differently sized instances of a square UWP control, for testing UI and perfomance.

There's a blog post explaining this control right here: https://xamlbrewer.wordpress.com/2016/01/06/using-a-simple-perfect-squared-square-to-test-uwp-controls/.

NuGet Package

To install SquareOfSquares Control for UWP, run the following command in the Package Manager Console

PM> Install-Package XamlBrewer.Uwp.SquareOfSquares