Simple question on Parameters...

[KraftDiner]

I have defined a method as follows:

def renderABezierPath(self, path, closePath=True, r=1.0, g=1.0, b=1.0,
a=1.0, fr=0.0, fg=0.0, fb=0.0, fa=.25):

Now wouldn't it be simpler if it was:

def renderABezierPath(self, path, closePath=True, outlineColor,
fillColor):

But how do you set default vaules for outlineColor and fillColors?
Like should these be simple lists or should they be structures or
classes...