Examine source code of BrunosGrenade

{
  "theme": {
    "images": {
      "theme_frame": "GranadePersona21.jpg"
    },
    "colors": {
      "frame": "#050045",
      "tab_background_text": "#d3d3e3"
    }
  },
  "version": "2.0",
  "name": "BrunosGrenade",
  "manifest_version": 2,
  "description": "Bruno Mars' Grenade. An original screenshot from the official video and my take on it."
}