ImageOptim / ImageOptim/ImageOptim
fill area in image results empty after processing (Zopfli)
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- HTML
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Description
Hello, I isolated to Zopfli (also in combination with other optimizers) this defect:
Optimized (notice the black text KIT)

Original

Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the reported empty fill area using the original image and Zopfli, then compare the processed result with the attached examples. Done means identifying and correcting the processing defect so the optimized image preserves the original filled area.
Written by the indexing model from the issue text.
Assessment
- Domain
- desktop, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100