Examine source code of DeathNote

{
  "theme": {
    "images": {
      "theme_frame": "preview_large-tile.jpg"
    },
    "colors": {
      "frame": "#eb1111",
      "tab_background_text": "#0d0c0c"
    }
  },
  "version": "2.0",
  "name": "DeathNote",
  "manifest_version": 2,
  "description": "Anime"
}