Examine source code of Kid

{
  "name": "Kid",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "human_px.png"
    },
    "colors": {
      "frame": "rgba(41, 82, 186, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(42, 64, 122, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(31, 46, 89, 1)",
      "tab_line": "rgba(32, 42, 69, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d43147d3-79d9-4934-9fb4-0fab4f018a03}"
    }
  }
}