dimple.js - modify shape to be unfilled bubble depending on value of 'Channel' -

looking suggestions on how can modify example dimple.js code in link below output filled/unfilled circle depending on value of 'channel' variable?

picture below example of result looking achieve.

you can do:

chart.assigncolor("supermarkets", "transparent", "blue");

where third parameter whatever want outline colour be. if want thicker borders picture can after drawing with:

svg.selectall("circle").style("stroke-width", 5);

to bit more specific can assign series variable , access them way:

var series = mychart.addseries("channel", dimple.plot.bubble); mychart.draw(); series.shapes.style("stroke-width", 5);

or can set stroke-width in css.

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