In Adobe Illustrator, a layer is a way to organize and group artwork. Layers can be used to control the visibility, position, and other attributes of the objects they contain. Each layer has a label that helps to identify it, and the color of this label can be changed to make it more visible or to match the color scheme of the document.
Changing the color of a layer label is a simple process. First, select the layer in the Layers panel. Then, click on the “Label Color” icon in the Properties panel. A color picker will appear, and you can use it to select a new color for the label.