This is a property node for a control (implicit binding).
Maybe you should work through the basic LV tutorials. I am pretty sure that these items show up there....
-That is property node for the image indicator.
-If you have started just learning LabVIEW please check these links:
Start with below links to learn about LabVIEW programming
In addition to the advice mentioned above, if you right-click on a node, the resulting menu usually has a "Help" selection - in the case of property nodes, you will usually get TWO "Help" selections - one for generic property help and one for help with the specific property chosen.