{
  "mode": "built-in image_gen",
  "prompt": "Use case: stylized-concept. Asset type: transparent VFX animation atlas for a fictional retro first-person video game. EXACT 8 equal cells, 4 columns x 2 rows. In every cell, a muzzle flash seen DIRECTLY HEAD-ON, looking into a circular barrel that points UP toward the player/camera. Use the attached shotgun sprite only as a STYLE reference; render ONLY isolated fire/smoke effects, NO weapon, hands, people, room, text, grid or labels. Every burst has its ignition point at the EXACT center of its cell. The projectile/fire travels TOWARD THE VIEWER along the viewing axis, never sideways. Radially expanding nearly circular/star-shaped yellow-white core with orange rays around it. Frame 1 small bright ignition disk; frame 2 growing round starburst; frame 3 largest round white-hot blast; frame 4 waning amber round flare; frame 5 thin circular gray smoke ring centered at ignition point; frame 6 rising gray smoke from that same origin; frame 7 sparse dissipating smoke; frame 8 very faint smoke wisps. Richly shaded crisp 1990s pixel-art matching reference, NOT smooth photo. Symmetrical frontal fire shape, center alignment identical in all eight cells, ample transparent margin. DO NOT make a side-view arrow/flamethrower or a horizontal flame jet. Genuine transparent background including between cells; preserve translucent smoke.",
  "asset": "self-flash-v4.png"
}