Examine source code of HR

{
  "name": "HR",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Real Estate Agent Promotion Facebook Cover Photo.png"
    },
    "colors": {
      "frame": "rgba(16, 78, 222, 1)",
      "tab_background_text": "rgba(237, 19, 197, 1)",
      "toolbar": "rgba(163, 150, 150, 1)",
      "bookmark_text": "rgba(142, 114, 219, 1)",
      "toolbar_field": "rgba(66, 36, 36, 1)",
      "toolbar_field_text": "rgba(209, 157, 201, 1)",
      "tab_line": "rgba(168, 131, 131, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{208421e2-3ca6-4b27-8b31-e59e87b74b62}"
    }
  }
}