Output classes: This field lets you introduce names to your output classes separated by commas. By default, an ML model outputs numerical values for each of the labels (e.g. 0,1,2,3). However, to ease the explanations generation, you can provide a name to each of them. For example, if 0: "red"; 1: "blue"; 2: "green"; 3: "yellow", you will introduce red,blue,green,yellow in this field.