Examine source code of Persona 3 simple

{
  "name": "Persona 3 simple",
  "manifest_version": 2,
  "version": "9.0",
  "theme": {
    "images": {
      "theme_frame": "aaaaa.png"
    },
    "colors": {
      "frame": "rgba(0, 187, 250, 1)",
      "tab_background_text": "rgba(240, 251, 255, 1)",
      "toolbar": "rgba(0, 187, 250, 1)",
      "bookmark_text": "rgba(240, 251, 255, 1)",
      "toolbar_field": "rgba(122, 214, 253, 1)",
      "toolbar_field_text": "rgba(3, 22, 62, 1)",
      "tab_line": "rgba(168, 226, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{93728241-9af0-47c8-8ab5-d51251e83453}"
    }
  }
}