Export without borders

At the moment I can only export with small borders or normal borders, but I want to export without borders or transparent borders. I don't care if objects are cut of at the sides of the image.

Background why I want the feature:
When the players walk outside the map (e.g. following retreating creatures in a forest map), I can change the size and set the background of the VTT to the map-image-color and have near-seamless transition between the image and the extended map. With the border I always have a bad-looking border