Graphviz Plugin

Hello Everyone,
I have installed Graphviz plugin into integrated xwiki and I am able to generate the image successfully through xwiki page. But the problem is here it is generating “.gif” image format all the time and I would like to generate “.svg” format. Could anyone have an idea, all suggestions would be appreciated.
Thank you.

Cross-posted here: https://stackoverflow.com/questions/46884904/generating-svg-image-using-graphviz-macro-in-xwiki