The Piccadilly line on the London Underground is identified by a dark blue color.
go and check the underground station map its free
Manchester, United Kingdom
Through piccadily square
line: means what type of line direction: the direction of the line tone: the tone of the colour ( what type of colour) size: How big something is colour: the colour of the image.
reticulated system pipe line colour code
I think you should colour than fine line. You could fine line then colour, it is your choice. I prefer not to fine line
With great ease by heading south for about fifteen minutes.
red
Black.
salmon pink
Yellow
green