I was watching a tutorial about texture paint and the teacher said:
Go to “Active Tool and WorkSpace Settings” tab > Texture Slots section. Change the Mode to Single Image. Don’t create a new image. Just pick the name of the image that you’ve just created.
The image that I selected appeared on the object and he said that this connects the image to the object. But I still don't understand what this does or what he means by "connects". Of course, it's not connected to the object as a material. Is this step just to shows us what part of the image are we painting on? Just for a demonstration purpose?