Spine/Unity practice inputs and two C# examples for spine-unity4.3. Copy project before use. Names walk/run and skin-base/hair/pink are examples; use actual exported names. No Spine runtime, Unity executable, license or private data included. C# compiled using local test doubles only; native import/export/render/mesh/IK and Unity compilation have not been verified. mesh-practice-input.png is an owned synthetic320x160RGBA input, not a screenshot. Stop Play and disable practice scripts to restore scene behavior. Do not overwrite original project.