verb: To bring to the user's attention by changing the intensity or color of some user interface object (such as a point, line, photo chip or button). noun: An attribute of a user interface object when it has been flagged for special user attention.
PhotoModeler uses various highlight colors:
red - indicates that the object has been selected
yellow - indicates that a point is referenced or about to be referenced
green - indicates that the point defines the origin, axis or scale point of the model.
Note these colors can be changed in Preferences - User Interface on the Colors page.