This question has probably been asked before, but all of the answers I have found have been for vastly different versions, and it seems like the UI has changed a lot.
How can I set up a material to use so that it displays in the Materials viewport shading mode? I'm fairly new to Blender, and I've managed to accidentally enable "Nodes only" somehow in the Materials tab.
The texture is already set up and the object is UV unwrapped - I just need it to display now.
Here's what I'm looking at now: