Colored component hierarchy in DOT
Colored component hierarchy in DOT

Add colorscheme parameter to desmod.dot.component_to_dot(). This allows
the generated DOT to use a progression of fill colors to differentiate the
levels of the component hierarchy.

The allowed color scheme names are the Brewer schemes supported by
graphviz: http://graphviz.org/content/color-names#brewer

The default behavior remains the same since the new colorscheme parameter
defaults to ''.

SanDisk-Open-Source/desmod,bgmerrell/desmod