Proposal: Add a canonical icon for OpenAPI Overlay

I would like to donate the attached icon for the OpenAPI Overlay Specification, with the goal of giving OpenAPI Overlay a canonical visual identity.

The asset is an SVG, so it should be possible to extract just the icon and omit the Overlay text if maintainers prefer an icon-only version.

My intent is to contribute this as an OpenAPI Overlay icon. If accepted, I am happy for the asset to be copied into this repository and maintained by the OpenAPI Initiative as the canonical icon for Overlay.

Provenance disclosure:

The icon was produced using an image-generation-capable model. The prompt was to create an OpenAPI Overlay icon, and the Overlay Specification was attached as context. I do not have the original prompt text, seed, model metadata, or generation history available.

I have used this icon in a number of my open-source projects to graphically represent overlays.

To the best of my knowledge, I am not aware of any third-party logo, trademark, or copyrighted work that this icon intentionally copies or derives from.

Rights / licensing:

I am willing to contribute whatever rights I have in the asset under the repository’s existing license terms, or under another license or contribution process preferred by the OpenAPI Initiative or Linux Foundation. If a CLA, DCO sign-off, trademark review, or additional written statement is required, I am happy to provide it.

Suggested next steps:

• Maintainers review whether the icon is appropriate as a canonical OpenAPI Overlay mark.
• Maintainers advise whether the missing AI-generation provenance is acceptable.
• If acceptable, I can open a pull request adding the SVG asset and any README/documentation references requested.

Start with issue #358 and review the attached SVG proposal, including the option to use an icon-only version. Check the stated provenance, licensing, CLA/DCO, and trademark considerations with maintainers. Done means maintainers accept the mark and its provenance and specify the requested asset and documentation changes for a pull request.