in reply to line graph

What's the value of the area_fill parameter?

If you want to change the colors, you will have to edit the stylesheet. Look-up "style_sheet()" in the docs: it explains how to use an external stylesheet.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

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