Examine source code of nez

{
  "name": "poulet",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "artworks-6Y0NdaBghC3Mb5IJ-OgQqHw-t500x500.jpg"
    },
    "colors": {
      "frame": "rgba(60, 165, 230, 1)",
      "tab_background_text": "rgba(237, 83, 222, 1)",
      "toolbar": "rgba(40, 132, 224, 1)",
      "bookmark_text": "rgba(56, 45, 45, 1)",
      "toolbar_field": "rgba(219, 17, 222, 1)",
      "toolbar_field_text": "rgba(37, 19, 38, 1)",
      "tab_line": "rgba(16, 217, 224, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{67d51d5f-0eed-4f19-818d-e7d2abe25b2c}"
    }
  }
}