Keep exact 128x128 4x4 tile atlas, every geometry edge al...

Keep exact 128x128 4x4 tile atlas, every geometry edge alpha silhouette and tile position unchanged. Add visible splinter cracks and chipped pale plaster to each existing wood wall strip, half damaged but still connected. Preserve all connections at tile edges. Fixed overhead light, pale warm plaster and walnut timber palette. No rotation, displacement, new objects or text. Transparent crisp pixels.