{
    "id": "TEST_GAS", "name": "Typhon", "body_type": "planet",
    "planet_class": "gas_giant", "body_scale": "planet", "seed": 44456,
    "star": {"type": "G", "luminosity_solar": 1.0, "color_temp_K": 5800},
    "orbit": {"distance_au": 5.2, "period_days": 4333, "axial_tilt_deg": 3.0},
    "physical": {"gravity_g": 2.5, "oblateness": 0.065, "atmosphere": "dense", "atmosphere_color": [0.7, 0.6, 0.4]},
    "terrain": {"land_fraction": 0.0, "polar_ice_lat": 0.99, "tectonics": "none", "max_elevation_km": 0},
    "environment": {"geothermal_flux": "moderate", "uv_index": "moderate", "substrate": "gas", "chemosynthetic": false, "hydrosphere": "none"},
    "clouds": {"enabled": false},
    "gas_giant": {"band_palette": "jovian", "storm_count": 3, "storm_max_size": 0.10},
    "render": {"globe_light_angle_deg": 130, "specular_ocean": false, "night_side_ambient": 0.015}
}