It means that the paint is white and if you want a certain color you must add the color tint you want
The guy at the paint store adds the selected tint to a white base paint. You can get them to alter the tint somewhat to customize it, but most of it is computerized.
paint that has to be tinted is paint that you customize the color of the paint. you have to tint it to make the specific color you want.
You need to put some other color in it, just a tad! 🙂 arum