I created a new VS2017 project template because the C# 'Class' template for Xamarin.Android adds way too much usings for my tastes. Here's the .vstemplate file:

<VSTemplate Version="3.0.0" xmlns="http://schemas.microsoft.com/developer/vstemplate/2005" Type="Item"> <TemplateData> <DefaultName>Class.cs</DefaultName> <Name>Class</Name> <Description>An unfancy C# class.</Description> <ProjectType>CSharp</ProjectType> <SortOrder>10</SortOrder> <Icon>__TemplateIcon.ico</Icon> </TemplateData> <TemplateContent> <References /> <ProjectItem SubType="Code" TargetFileName="$fileinputname$.cs" ReplaceParameters="true">Class.cs</ProjectItem> </TemplateContent> </VSTemplate>

I can't figure out why, but this item template won't show up in my Xamarin.Android project. However, the template does show up when I create a new .NET Core/Framework project and click Add > New Item.

Any clue what's causing this? I've been staring at MSDN/StackOverflow questions for half an hour but none of them seem to help with this.

I'm using the latest stable build of VS2017, which I think is 15.2.