+ <package id="OpenTK" version="2.0.0" targetFramework="net452" />
+ <package id="OpenTK.GLControl" version="1.1.2349.61993" targetFramework="net452" />
+ <package id="System.ValueTuple" version="4.3.1" targetFramework="net452" />
+ <package id="ZedGraph" version="5.1.7" targetFramework="net452" />