Original Nintendo game artwork and an explicitly documented palette adaptation.
Retained only for authorized private learning comparison.

Source catalogue: Super Mario Wiki ordinary public Gallery and File pages.
Each actual original link, response SHA-256, RGBA SHA-256, byte count,
dimensions, palette, PNG chunks and encoding is in ASSET_PROVENANCE.json.

No original walkthrough crop is a runtime texture. SMM1 Koopa/Shell sources
are visually matched to the supplied SMM2 final-game SMB1 reference; they are
not claimed SMM2 binary rips. Native SMM2 Conveyor sources are static poses.

The second Koopa walking stance uses the retained original NES family with
the verified SMM palette. The 8-tick cadence, conveyor extension/angle
sampling and inner gear quarter-turns are declared adaptations.

Nintendo copyright is independent of the project's MIT implementation
licence. No image rights, public redistribution licence or commercial
rights are granted or asserted by this project.
