II have configured Workflow Manager by following the instructions at Configure Workflow Manager SharePoint 2016, I also checked the Workflow Manager Health Checklist to make sure that the I configured SharePoint 2016 properly.
But when I tried to create a workflow site in SharePoint designer, I can't find SharePoint 2013 Workflow - Project Server in Platform type in SharePoint Designer 2013.

My questions are
- Why SharePoint 2013 Workflow - Project Server is not listed in SharePoint Designer?
- How can I show SharePoint 2013 Workflow - Project Server in SharePoint Designer?