Examine source code of Marios 30 years

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Mario30years_encbzdo-JPG.jpg"
    },
    "colors": {
      "frame": "#c40000",
      "tab_background_text": "#4f0000"
    }
  },
  "version": "2.0",
  "name": "Marios 30 years",
  "manifest_version": 2,
  "description": "This is a persona about Mario for celebrate his 30 years since his creation."
}