StackChan Nukoevi Motion Assets

Non-negotiables

Final display frames are 320x240, landscape 4:3.
Six-frame talk or sleep strips are 1920x240.
Normal blink and sleepy avatar frames are runtime raw RGB565 .bin assets in the firmware assets partition, not app-partition C assets.
Do not use LZ4-compressed assets for full-screen Nukoevi avatar frames. That path caused white-screen behavior on hardware.
Use full flash, not app-flash, after changing runtime .bin assets or partitions.csv.
Never use forced aspect distortion such as -resize 320x240! or -resize 1920x240!.
Use aspect-preserving resize only. For generated 4:3 images, -resize 320x240 is enough. For uncertain inputs, use -resize 320x240^ -gravity center -extent 320x240.
Do not invent the framing. Inspect the actual reference frames first.
nukoevi-source.png is identity/style reference. It is not the framing reference for motion assets.
nukoevi-blink-frame-0..3.png are the framing reference. The visible range is head, face, hat, ears, hair, and neck. Do not add chest or torso.
Treat your own interpretation as suspect. If the user says the reference is neck-only, do not describe it as chest or body.

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