enthought/chaco — pull request #29 by cfarrow (2011-11-08 04:35:53+00:00)
Title: ENH: More flexible handling of the alpha channel in BarPlot

Akin to #23, I added effective alpha values for both ``line_color`` and ``fill_color`` traits, which are the product of the respective color alpha and the ``alpha`` trait. A new demo that demonstrates the enhanced functionality, ``bar_plot_demo.py``, accompanies the change.