I wish there was proper HSV adjustment sliders built in in the texture nodes. Color gain/offset or color remapping aren't too practical imho. Is there a plugin for this? For now I created my own (pretty messy) shader network to achieve the this. I added Hue (-180...180), Sat (0...2) and Val (0...2) custom attributes to the file texture node and connected them like in the picture below. The system works but I got like 30+ shaders I'd like to add this network to. I could write a mel script to do it all but before I start coding I wanted to know if there's an easier way...