Examine source code of My pets

{
  "theme": {
    "images": {
      "theme_frame": "nossosfilhos.jpg"
    },
    "colors": {
      "frame": "#f20808",
      "tab_background_text": "#c111f2"
    }
  },
  "version": "2.0",
  "name": "My pets",
  "manifest_version": 2,
  "description": "My loved pets"
}