1. A method for managing signposts in a navigation system, comprising: storing a text and a symbol associated with a signpost in a navigation database stored in a memory device; storing a background associated with the signpost in the navigation database independently from the text and the symbol, the background being a three-dimensional body; determining, by a processor, navigation information based on current position of the navigation system; receiving, by the processor, a vehicle information parameter from a vehicle in which the navigation system is installed, the vehicle information parameter being related to a fuel level in the vehicle; dynamically retrieving, with the processor, from the navigation database, at least one of the text, the symbol, or the background, based on the navigation information and the vehicle information parameter; assembling, with the processor, at least one of the text or the symbol, and the background into the signpost; and displaying, with a display device, the signpost on a digital map.