[Matplotlib-users] plot control

Dear Experts.I have been trying to modify plot properties of taylor diagram from below package. I wanted to make markerfacecolor as None( this allows me to show symbols which falls over another) of s as possible in normal matplotlib plots but I am not sure how to pass the argument in modified figure environment of taylor plot. If I try to use markerfacecolor option the code says it do not know about such option. I was also checking it is possible specify alpha= n so that the color intensity of symbol can be modified. But both options are not working or I am not putting it in proper way in such situation. 
Please advice if it is possible.Sudheer

https://pypi.python.org/packages/1e/98/d6d5d9200fcec4fdbd20f0f084b6e41e176284786315449cc0c896a411e8/SkillMetrics-1.1.2.tar.gz#md5=7d5e7200375b1c5e1c4fb8344624be67
sm.taylor_diagram(sdev,crmsd,ccoef,markerLabel=label,markerLegend = 'on',markerobs='v',markerfacecolor='None',s
   ...: tyleOBS='-',colOBS='r',titleobs='RAMA_SST')
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-4-96eeafddc836> in <module>()
----> 1 sm.taylor_diagram(sdev,crmsd,ccoef,markerLabel=label,markerLegend = 'on',markerobs='v',markerfacecolor='None',styleOBS='-',colOBS='r',titleobs='RAMA_SST')

/usr/local/lib/python2.7/dist-packages/skill_metrics/taylor_diagram.pyc in taylor_diagram(*args, **kwargs)
     71 
     72     # Get options
---> 73     option = get_taylor_diagram_options(CORs,**kwargs)
     74 #    print option # debug
     75 #

/usr/local/lib/python2.7/dist-packages/skill_metrics/get_taylor_diagram_options.pyc in get_taylor_diagram_options(*args, **kwargs)
    177         optname = optname.lower()
    178         if not optname in option:
--> 179             raise ValueError('Unrecognized option: ' + optname)
    180         else:
    181             # Replace option value with that from arguments

ValueError: Unrecognized option: markerfacecolor
 *************************************************************** Sudheer Joseph Indian National Centre for Ocean Information Services Ministry of Earth Sciences, Govt. of India POST BOX NO: 21, IDA Jeedeemetla P.O. Via Pragathi Nagar,Kukatpally, Hyderabad; Pin:5000 55 Tel:+91-40-23886047(O),Fax:+91-40-23895011(O), Tel:+91-40-23044600(R),Tel:+91-40-9440832534(Mobile) E-mail:sjo...@gm...;sud...@ya... Web- http://oppamthadathil.tripod.com ***************************************************************