Examine source code of angelbeats1

{
  "theme": {
    "images": {
      "theme_frame": "2.jpg"
    },
    "colors": {
      "frame": "#1c2efc",
      "tab_background_text": "#632ef5"
    }
  },
  "version": "2.0",
  "name": "angelbeats1",
  "manifest_version": 2,
  "description": "AngelBeats！が好きなので自分用に。初めて作りました"
}