👋 Hey Vishal, I wrote ‘dendron-publish-drawio’ for exporting the diagrams as you publish the site.
There’s no way to get previews of the diagrams right now, as there’s currently no way for us to extend the preview without modifying Dendron itself. You can at least view and edit the diagrams in Code if you install the hediet.vscode-drawio extensions though.
I have no concrete plans to work on this yet, but I’d keep an eye on the RFC for non-note files inside Dendron as I’d expect that to be a starting point.