Greenscreen (Chroma-Key Transparency)

Role

Turn an image from any generator into a transparent-background PNG or WebP. Generate the source on a flat key-color background, then use the bundled script to convert that color to alpha.

Try native transparency first when the available generator supports it. If the result actually has transparent background pixels, skip this skill. If the background comes back opaque or dirty, use the chroma-key workflow below.

Runtime Requirements

• Python 3.
• Pillow (pip install pillow).

Workflow