Graphics for drawn object fill?

Is there a way to use one of the online tile or background graphics as the fill for a drawn object, instead of a solid color from the standard color picker?   I usually start a new map by putting a grass or dirt tile on the whole map.  If I want to draw something freehand, like a cave complex or a lake, I'd like the fill for it to be something equally as detailed and interesting as the grass or dirt.  But right now, I can only use the color picker to select the fill, and the plain solid color looks out of place against the detail tiles. Thanks

Tile.js will let you duplicate a graphic as a tile over an area.  Stephen S. has also created several impressive scripts designed to assist in map generation, such as  Dungeon Draw . However, it is not possible to perform a "bucket fill" with some graphic in an arbitrary polygon.

Thanks for the help.  I realized though that I put this in the wrong forum.  I meant it as a general UI question, & not a scripting question.  But I'm guessing the UI doesn't handle a hand drawn polygon bucket fill either?

Black Cavalier, you are correct about the standard UI not being able to do a bucket fill like you want. What you will need is the API feature (pro subscriber feature) and the scripts that Brian mentions. If you are not wanting to use the API, you will have to use a 3rd party program to make your map outside of roll20 and then upload the map. I moved the post to specific use forum.