"Biome" describes per-zone vegetation classification (Whittaker table).
"Planet class" describes overall planetary character. The conflation
caused the planet generator to misclassify ~270 bodies as barren.
Scope: systems.db column, schema SQL, Rust atlas code, wiki table
headers (Biome → Class), atlas proposal JSONs, all docs/decisions,
tooling scripts. Also normalizes atmosphere vocabulary (breathable →
standard) and expands planet class mapping to all 26 wiki values.
Unknown classes default to temperate for modder safety.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
7 planet type PNGs (512×512px RGBA) covering all biome_summary values:
temperate, temperate_terminator, oceanic, arid, frozen, volcanic, barren.
Pure Python ray-sphere renderer (spikes/planet-renders/generate_planets.py)
— numpy/PIL only, no Godot dependency, ~2s for all 7 types. Seeded from
body_id for reproducibility. Resolves Q-064 (Godot 3D planet plugin
evaluation — superseded by headless Python approach).
Assets at client/assets/planets/, 512×512 RGBA, displayed at 240×240 in
the body-info-panel navigator and GTTR arrival window.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>