Set PIECHART Slice Colors for Unknown Attributes

[tburus]

I am trying to create a template that will fill slices of a pie using PROC Template and PIECHART. I know I can use DISCRETEATTRMAP, but the problem is I am using this template on automated pie creations with the OTHERSLICE= option enabled, so I don't necessarily know which attributes (or how many) will show up in any given run. I tried using FILLATTRS=(COLOR=()), but this seemed to only allow for one color. Is it possible to define my own color rotation to be used in this manner?

My code:

proc template;
define statgraph top5pie;
begingraph;
layout region;
	piechart category = injsite /
	datalabellocation = inside
	datalabelcontent =(percent)
	datalabelattrs = (family='Arial/bold' weight=bold size=12pt color=&Dgold.)
	categorydirection = clockwise
	dataskin = crisp
	start = 180 name = 'pie'
	otherslice=true
  	othersliceopts=(type=percent percent=10 label="Others (Sites < 10% of Total)");
	discretelegend 'pie' /
	title = 'Injury Sites'
	titleattrs=(family='Arial' size=12pt)
	border=false;
endlayout;
endgraph;
end;
run;