Recolouring a transparent layer
From Qwen-Image 2.1 Turbo, run locally



- Output
- 1024×1024 RGBA
- Turbo, 8 steps
- 24.1 s
- Base 2.1, 40 steps
- 65.4 s
- Turbo sampling
- 8, euler, trained sigmas (ManualSigmas), cfg 1.0
- Base sampling
- 40, euler / simple, cfg 1.0
- Seed
- 1234
- Ran on
- RTX 3060, 12GB (local)
What was wired in
Dragon sticker layerRGBA, generated with Qwen-Image 2.1 in the earlier projectDownload PNG0.7 MB
Change the dragon's body colour from green to bright orange, keeping its shape, outline, pose and the white sticker border exactly as they are. The image stays an RGBA image with a transparent background.
Notes
The layer goes in with its alpha, through a JoinImageWithAlpha node. The alpha that comes back overlaps the input's by 99.8% on Turbo and 99.7% on base (intersection over union).