This mod allows for easily registering paintings and other decorative nodes.
Use one of the three functions to register your artwork.

artwork.register_full(name, desc)
artwork.register_landscape(name, desc)
artwork.register_portrait(name, desc)

where name is the node and texture name and desc is the node description.

Texture should be provided as a 64x64 px image with details no smaller than 50px in either direction.

_full will register a node that is 2x2, centered to a single node, so it overlaps the surrounding nodes.
_landscape registers a node that is 1.5x2 also centered to a single node.
_portrait registers a node that is 2x1.5, also centered to a single node.
