I tried to change to cursor to achieve a fluid integration with leaflet draw shown in this example.
https://leaflet.github.io/Leaflet.draw/docs/examples/popup.html
When the cursor is over the image it's and open hand. When the cursor is over an drawing it's a pointer.
Unfortunately non of the standard leaflet techniques described here worked.
How do I change the default cursor in leaflet maps?
Does someone has an idea how to do it with ngx-leaflet?
The problem was caused by an imageoverlay with the same dimensions, which was stacked behind the tilelayer. I had to set interactive: false inside the imageOverlay