He then identified the difficulties associated with this submission. The first was that the court was being invited to compare copies of two sheets of the scheme map. The court did not have the original scheme map. Secondly, when the relevant shades of colour of the two copy sheets of the scheme map were compared it was not obvious that there was a difference of shade of colour affecting the Residential-R zoning. Thirdly, the object of the distinctive colouring, in some cases together with borders, hatching and lettering, depicted on the legend of the scheme map is to delineate and identify each of the zones, and to differentiate each one of them from the others. Using the copies of the relevant sheets there was no difficulty in determining which of the zones of TPS5 was applicable as the colours used in the legend of the scheme map are so distinctive that together where applicable with the devices of borders, hatching and lettering, any slight difference of the shade of colour which might be found between two different sheets of the scheme map was not sufficient to give rise to doubt as to the intended zoning. Fourthly, the relevant sheet of the scheme map depicts the land as being contained within an area which is bordered in brown. The legend depicts the Residential-R zone not only by colour but also as delineated by a brown border. Fifthly, the area delineated by the brown border has superimposed on it "R15". Under cl 7(4) of TPS5, code density numbers are superimposed on the areas within the zones. TPS5 only applies the R codes to land within residential zones. Parker J continued: