https://learn.microsoft.com/en-us/windows/windows-app-sdk/api/winrt/microsoft.ui.xaml.controls.canvas.leftproperty?view=windows-app-sdk-2.0
Canvas.LeftProperty Property (Microsoft.UI.Xaml.Controls) - Windows App SDK | Microsoft Learn
Identifies the Canvas.Left XAML attached property.
windows appcanvaspropertymicrosoftui