Examine source code of Fall by M♥Donna

{
  "name": "Fall by M♥Donna",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "FallT.jpg"
    },
    "colors": {
      "frame": "rgba(232, 233, 235, 1)",
      "tab_background_text": "rgba(255, 206, 133, 1)",
      "toolbar": "rgba(0, 0, 0, 0.02)",
      "bookmark_text": "rgba(255, 206, 133, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.08)",
      "toolbar_field_text": "rgba(255, 206, 133, 1)",
      "tab_line": "rgba(250, 126, 60, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c0b44936-51b8-477d-9a1b-825e5fa25a67}"
    }
  }
}