Examine source code of Oranges 999+

{
  "name": "Oranges",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Post na Facebook 940x788 px.jpeg"
    },
    "colors": {
      "frame": "rgba(255, 128, 0, 1)",
      "tab_background_text": "rgba(18, 18, 17, 1)",
      "toolbar": "rgba(36, 34, 31, 1)",
      "bookmark_text": "rgba(255, 128, 0, 1)",
      "toolbar_field": "rgba(148, 120, 89, 1)",
      "toolbar_field_text": "rgba(0, 34, 255, 1)",
      "tab_line": "rgba(206, 13, 227, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fd15c470-f1cc-4260-b895-34c3081636a1}"
    }
  }
}