Xamarin.Android.Support.v13 by: Xamarin Inc.

v13 Android Support Library C# bindings for Xamarin

Xamarin.Android.Support.v4 by: Xamarin Inc.

v4 Android Support Library C# bindings for Xamarin

Xamarin.Android.Support.v7.AppCompat by: Xamarin Inc.

v7 AppCompat Android Support Library C# bindings for Xamarin

Xamarin.Android.Support.Vector.Drawable by: Xamarin Inc.

Vector Drawable Android Support Library C# bindings for Xamarin

Xamarin.AndroidX.Migration by: Microsoft

This package provides a set of tools and MSBuild tasks to aid in the migration from Android Support to Android X.

Xamarin.Build.Download by: Microsoft

Support for downloading and unpacking archives when building MSBuild projects

Xamarin.Dropbox.Api by: xamarin dropbox

Portable class library for accessing the Dropbox v2 API specifically for Xamarin.Android and Xamarin.iOS to fix a depedency issue with the standard package. Bumps the minimum version of Microsoft.Bcl.Build to v1.0.21 and adds .Net standard 2.0 version of the library

ZKWeb.System.Drawing by: ZKWeb.System.Drawing

This is a .Net Core compatible System.Drawing implementation modified from mono project, works on windows and linux. Please see project site for more information.