Examine source code of Lavender Web

{
  "name": "Lavender Web",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "1x1-00000000.png"
    },
    "colors": {
      "frame": "rgba(125, 132, 178, 1)",
      "tab_background_text": "rgba(249, 249, 237, 1)",
      "toolbar": "rgba(142, 157, 204, 1)",
      "bookmark_text": "rgba(249, 249, 237, 1)",
      "toolbar_field": "rgba(210, 213, 238, 1)",
      "toolbar_field_text": "rgba(151, 157, 216, 1)",
      "tab_line": "rgba(217, 219, 241, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{08de76b5-7f83-4f11-a04d-6bb1272b412d}"
    }
  }
}