draw.io is becoming diagrams.net

As Atlassian sells the draw.io on the Atlassian Marketplace, they must provide you with a quote. You can generate a quote via the Marketplace.

1. Go to https://marketplace.atlassian.com/plugins/com.mxgraph.confluence.plugins.diagramly/server/overview.
2. Click on Buy it now. Select Server then click Buy now.
    
3. Select Quote and fill in the details of your purchase. Click Add to quote and submit the form to Atlassian.