Clean UI based Qlik Sense Dashboard

[tanmay_bhardwaj]

Can some one please advise how can I design a clean UI based Qlik Sense Dashboard same as the 'Customer Sales KPI Dashboard' given on the below webpage

https://www.qlik.com/us/dashboard-examples/sales-dashboards

Are there any open source tools or themes that can help me in quickly making such dashboards.

Thanks