Examine source code of Alien Minis

{
  "theme": {
    "images": {
      "theme_frame": "Aliens.jpg"
    },
    "colors": {
      "frame": "#7824ff",
      "tab_background_text": "#b80000"
    }
  },
  "version": "2.0",
  "name": "Alien Minis",
  "manifest_version": 2,
  "description": "Aliens are a fascination of many and this is my take on a confrontation."
}