using all of the System application in C#

I been learning more into depth csharp and is wondering is there a way to included all system namespaces in c# in unity files. For example two that aren’t there but i would be interested in using to make my game is system.drawing and system.audio. So if anyone know to include the whole c# system module, i would appraicated it, thank ahead of time

Unity is using Mono so first of all you have to check is package supported by Mono. Second thing - Unity using DirectX or OpenGL for rendering, so if System.Drawing uses something else (I’m sure it uses something else) - you can’t use it