Examine source code of Emerald Eyes by MaDonna

{
  "name": "Emerald Eyes by MaDonna",
  "manifest_version": 2,
  "version": "7.0",
  "theme": {
    "images": {
      "theme_frame": "1.jpg"
    },
    "colors": {
      "frame": "rgba(33, 46, 29, 1)",
      "tab_background_text": "rgba(50, 245, 39, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(33, 46, 29, 0.06)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(50, 245, 39, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{87513194-0217-4b24-b524-536faff92c12}"
    }
  }
}