Documentation
Parametric Styles
pygal provides 5 parametric styles:
Usage
A parametric style is initiated with a default color and the other are generated from this one:
You can set the step parameter to tell between how much colors the color modifier will be applied
and the max_ to limit the amplitude at a certain value (in % for all color operation except rotate which is 360):
You can tell the style to inheritate all the styles from another theme:
And you can manually set the properties just like any other theme: