There are two types of labels that can be displayed in the InDesign Normal Screen Mode only (View>Screen Mode>Normal):

•Red – show the type of box that needs to be imported into GN4. The Menu to toggle the label on/off is Plug-Ins>GN4>Labels>Type.

•Blue – shows the type of content that it is linked to (body, head etc). The Menu to toggle the label on/off is Plug-Ins>GN4>Labels>Linked.