0.11 Video tutorial: https://youtu.be/S6DYfL9c7os

The directions below are also in the .blend file

----- How to use in a new file -----

All of the objects in the "Scribble Gen Presets" collection are marked as assets.

To use them in the asset browser, go to Edit > Preferences > File Paths

Choose a folder for your asset library and make sure this file is in there.

That's it! Now you can access Scribble Gen Sets from any blender file!

----- How does it work? -----

Everything is made with geometry nodes, so you can play with the parameters in the modifier tab.

To draw with curves, go into edit mode, hit T to open the tool panel, and select the draw tool

Options are split into different categories.

If you want your curve to interact with your scene, set a target collection under the "Common" category

Collision is turned off by default for performance. Try turning it on to keep curves from going through objects. The higher the resolution the more accurate it should be.

Try changing the curve radius with alt+S, some of the options are tied to this shortcut. If you see an option that says "use curve radius", use alt+S.

Try hovering over options to see the tooltips