It seems like you're trying to unlock a product vector recipe that involves PNG images. However, I need more information on what you mean by "unlocking" and how it relates to the provided search results.

Could you please provide more context or clarify your question? Are you looking for a way to optimize PNG image compression, or perhaps generate a product vector recipe using Lunr library?

If you're interested in optimizing PNG images, I can suggest using the pngjs library, which provides an encoder/decoder in pure JS. Here's a brief snippet:

const pngjs = require('pngjs');

// Encode image to PNG
const buffer = await pngjs.encode({
  width: 100,
  height: 100,
  data: [0x00, 0x00, 0x00, 0xff],
});

However, without more information on your specific use case, it's difficult for me to provide a more accurate answer. Please provide more context or clarify your question so I can better assist you.