Can't find Color Balance node I'm using Blender 2.78 on a Mac and I can't find the color balance node in cycles, do I need to install an add on or enable it?

Thanks
The color balance node only exists in the Compositor window, not in the Shader Editor.



To go to the compositor, press this icon at the bottom of the node panel editor and check Use Nodes

In Blender 2.8x and further:


In versions 2.7x or earlier: select the compositing option.



and select use nodes: