Updating legend get_color_str() sig to pass model_instance & value.  End user implementing the legend should not need to use getattr() to get the value, let's go ahead pull it out and pass it.  Still should pass model_instance along as well in case it is desired to use other model fields for color calculation.
Updating legend get_color_str() sig to pass model_instance & value.  End user implementing the legend should not need to use getattr() to get the value, let's go ahead pull it out and pass it.  Still should pass model_instance along as well in case it is desired to use other model fields for color calculation.

monkut/tmstiler