Introduced a very simple "singleton" service-locator, which allowed for a removal of specific implementations which were very limited. With this it's easier to access dependencies.

GreenshotPlugin/Interfaces/IServiceLocator.cs

@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+
+namespace GreenshotPlugin.Interfaces
+{
+    public interface IServiceLocator
+    {
+        IEnumerable<TService> GetAllInstances<TService>();
+        TService GetInstance<TService>();
+
+        void AddService<TService>(params TService[] services);
+
+        void AddService<TService>(IEnumerable<TService> services);
+    }
+}