Hi Sanjyot,
You can change the bullets, but you have to do it through CSS modification.
Here's a video that shows you how to do that:
https://share.smartbuilder.com/public/support/css-custom-bullets.mp4And here's the sample package you download and modify:
https://share.smartbuilder.com/public/support/css-bullet-customization-sample.zipHope that helps!