Examine source code of Macro leaf green

{
  "name": "Macro leaf green",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "makro-macro-tekstury-list.jpg"
    },
    "colors": {
      "frame": "rgba(245, 247, 250, 1)",
      "tab_background_text": "rgba(3, 3, 3, 1)",
      "bookmark_text": "rgba(5, 5, 5, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5f6718fe-5c5a-44e9-8913-a35b36f3906b}"
    }
  }
}