ShiftSad/AirBrush ? reverse-engineered prompt

Build me a Minecraft plugin for a Paper server that basically turns the world into a giant canvas. I want players to be able to freehand draw on any surface with a pencil tool, erase strokes, and pick any color from a palette. It should feel easy to use in game, with brush size changes, straight line mode, undo, and support for multiple people drawing together.

I also want the magic progression part. A hammer should transmute amethyst into a temporary marker, players should be able to draw simple glyph shapes on walls or floors, activate them with dropped ingredients, and craft better quills and cloth from that. Quills should use brewed ink from cauldrons, including glowing and permanent ink, and cloth should work like a solvent based eraser.

Please include the basic commands to give tools, set color, undo, and reload settings. The plugin should work on Paper 1.21.4 with Java 21, and send the needed resource pack to players automatically. Look up current Paper docs online if you need to.