Examine source code of garadamamonster

{
  "theme": {
    "images": {
      "theme_frame": "garamon.jpg"
    },
    "colors": {
      "frame": "#047012",
      "tab_background_text": "#b5bbf2"
    }
  },
  "version": "2.0",
  "name": "garadamamonster",
  "manifest_version": 2,
  "description": "かつて持っていたガラモンのソフビです。マルサンの。"
}