| pickColour {GCDkit} | R Documentation | 
An auxiliary function to enter and check a validity of the color name.
pickColour(prompt = "Enter plotting colour (or press Enter to pick from a list)", default = "")
| prompt | Text prompting to enter a new colour name | 
| default | an optional default colour name | 
Returns a colour name or code.
Vojtěch Janoušek, vojtech.janousek@geology.cz