Examine source code of Minions

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#f8ff6b",
      "tab_background_text": "#eaf54f"
    }
  },
  "version": "2.0",
  "name": "Minions",
  "manifest_version": 2,
  "description": "Made by @Gescol"
}