Examine source code of Secure Green

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Secure",
  "description": "A security-inspired theme built around the green of a trusted connection.",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(79, 125, 81)",
      "toolbar_text": "rgb(228, 235, 228)",
      "frame": "rgb(49, 49, 49)",
      "tab_background_text": "rgb(199, 199, 199)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_selected": "rgb(255, 255, 255)",
      "tab_text": "rgb(0, 0, 0)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "secure@lionflower"
    }
  }
}