Examine source code of Live by Night

{
  "name": "Live by Night",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "graffititi-3.png"
    },
    "colors": {
      "frame": "rgba(125, 125, 125, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(9, 1, 30, 0.72)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.72)",
      "toolbar_field_text": "rgba(189, 35, 0, 1)",
      "tab_line": "rgba(255, 68, 0, 0.52)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e1852dbc-0f93-4f8c-8ed0-3bc510e7bc3c}"
    }
  }
}