Generated on September 19, 2026 with the built-in image-generation tool.
Reference/edit target: assets/masters/pieces.png (original piece atlas).
Selected output: assets/masters/black-shaded.png.
Production extraction: python3 tools/prepare_black_pieces.py.

Prompt:
Use case: precise-object-edit. Asset type: black chess-piece sprite sheet for a native desktop chess game. Reference image: existing white pieces in upper row and black pieces in lower row. Preserve the recognizable Staunton silhouettes, proportions, front-facing view, and outlines of the six piece types from this reference. Produce ONLY the six BLACK pieces, with stronger sculpted 3D shading like the white pieces: king, queen, rook, bishop, knight, pawn. Replace the nearly flat black interiors with rounded charcoal surfaces, broad visible gray highlights on upper-left-facing planes, medium charcoal body tones, deep shadows on the right, and subtle bright edge reflections. Keep every piece visibly black/dark, clearly distinct from white ivory pieces. Neutral grayscale only. No pure black flat interior areas except narrow outlines/shadows. Avoid simply tracing white outlines around black silhouettes. The knight faces left as in the reference. Crisp friendly classic game icons, solid geometric bases; readable when reduced to 24 or 48 pixels. Layout: exact 3-column by 2-row grid of equal square cells, king/queen/rook across top, bishop/knight/pawn across bottom. Each piece separately centered inside its cell, consistent scale and aligned bases, at least 12% transparent padding on all edges. Actual transparent alpha background, no checkerboard baked in, no board, no shadows outside the pieces, no text, no labels, no border, no watermark. Output a square sprite atlas.
