Flurl allows you to perform many common HTTP tasks directly off the fluent URL builder chain. Barely under the hood is HttpClient and related classes. As you'll see, Flurl enhances HttpClient with convenience methods and fluent goodness but doesn't try to abstract it away completely.
UWP Tile Generator
Generates all the required tiles for your UWP. Simply right click on a square png or svg and select Generate UWP Tiles - within seconds you'll have all the recommended tile sizes and what's more the extension will also update your package manifest so you don't have to