Examine source code of Manga Characters

{
  "theme": {
    "images": {
      "theme_frame": "letsgo.jpg"
    },
    "colors": {
      "frame": "#1d64f2",
      "tab_background_text": "#f22492"
    }
  },
  "version": "2.0",
  "name": "Manga Characters",
  "manifest_version": 2,
  "description": "Manga:\nNanaco Robin\nKaichou Wa Maid-sama\nVenus Capriccio\nLovely complex\nShugo Chara\nFull Moon wo sagashite"
}