Quote Originally Posted by Dazz1 View Post
darktable does have a tool called "Tone Curve" with some simple presets. ....
Does it have 'camera profiles' available either within the program or for download?
That is, these camera profiles will usually be specific to your camera .. make Canon, model XXX or whatever.

It's those profiles that try to emulate the Canon Picture Style tone curves.

They are not the same thing as camera support(ie. sensor specific support).