title: Differentiate different type of references in a project
body: <p>In Visual Studio 2015, under references for a project, I noticed that Analyzers has a different icon/image than others. </p>
  
  <p>I was wondering if there is a way to assign different icons to other types of references in a project so that you can tell at a glance where references are coming from (either NuGet or Project references or DLL references). </p>
  
  <p>I think this is very helpful, especially when you are slowing moving away from maintaining your own references folder and start using NuGet and have a mix of both in a project.</p>