Go to Dungeon Scrawl
If you need to quickly navigate to Dungeon Scrawl just click the link below:
The polygon tool is useful for drawing custom shapes. Click to set points, and double click to finish.
If snapping is off, you can drag to draw an area.
Just like other drawing tools (including rectangle, wall, select, regular polygon), you can turn on rough mode in the bottom left. With rough mode on, after drawing a shape you can move your cursor to control how rough the final shape is. This mode is useful for drawing caves.
The further you move your cursor, the rougher the shape will be.