What problem does it solve? Creating custom furniture and prop artwork for a local TMT Office requires producing strictly bounded, data-only JSON files that pass validation, and hand-writing these files often leads to rejected packs, invalid palettes, or broken placements. ## Core Features & Use Cases - Prop-Pack Authoring: Produce UTF-8 .tmtprop.json documents in v1 (single rotated sprites) or v2 (four directional frames with optional tint and text customization) formats. - Validation and Preview: Validate packs with tmt office prop validate, inspect advisory warnings, and preview artwork against a running local Office service. - Catalog and Layout Management: Install packs with revision-checked authorization, place props into world layouts using immutable digest references, and handle revision conflicts safely. - Use Case: An artist authors a directional desk lamp prop with tintable accents, validates the pack, installs it into the local catalog, and places it on a floor tile in the office layout. ## Quick Start Create a v2 TMT Office prop pack for a small bookshelf with four directional views, validate it, and install it into my local Office catalog.