Get the images in the source, and sort them by types. We are interested in three types of images: - the header, starting with 'header'. - the logos, starting with 'logo'. - And the rest (what we call "screenshots").
function getImages (source) {
  if (!fs.existsSync(source)) {
    console.error(`No images found for "${source}"`, '🤔')
    return
  }

  const images = {header: null, screenshots: [], logos: []}

  sfs.findAllFiles(source)
    .forEach(filePathWithSource => {
      // Remove 'path/to/images' from 'path/to/images/filename'.
      // ie, 'data/product/images/burger01.png' becomes 'burger01.png'.
      // This is super important. We only need this portion for:
      // - the comparison below
      // - the url on the site
      // - the copy to the built presskit
      const f = path.relative(source, filePathWithSource)

      // Authorize only these formats.
      const ext = path.extname(f)
      if (!authorizedImageFormats.includes(ext)) return

      // Ignore favicon.
      if (f.toLowerCase() === 'favicon.ico') return

      // And put in the correct category.
      if (f.toLowerCase().startsWith('header')) {
        images.header = f
      } else if (f.toLowerCase().startsWith('logo')) {
        images.logos.push(f)
      } else {
        images.screenshots.push(f)
      }
    })

  return images
}