Thumbnail

[didikunz]

What we just touched, during the meeting and went missing while talking about the Preview idea, is the thumbnail thing. Maybe we should consider adding a link to a PNG file with an image of the template. I would not expect it to be dynamically created by the template, but supplied by the template author. Could also made to be optional.

[nytamin]

Notes from Working Group discussion 2025-08-20:

The Group thinks that the concept of having a thumbnail is a good idea.

Some notes:

• We should limit PNG, JPG, GIF, webp
• Something to watch for is performance, if we're generating thumbnails on the fly, that can be quite expensiven updating many graphics.
• The thumbnail should be defined in the manifest, since this allows for a "graphics builder" to prerender and embed a thumbnail.
• If would ge good if it is possible to add multiple thumbnails (in different resolutions, for example).
• There was a discussion on additional formats such as svg, or html-iframes. We leave this for now for vendors to implement