ofxDelaunay solid colour triangles

Hi there!

I'm using ofxDelaunay for a project and i've ran into an issue trying to draw the triangles with a solid colour. Currently, the triangles are drawn with a gradient fill as seen below:

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Screenshot 2015-11-12 17.53.25.png1408x779 549 KB

I've read that it may be down to sharing vertices - Did anybody have any ideas on how to solve this? Some small code examples would help massively!

Thank you ever so much!

James.