Examine source code of Gitanjali

{
  "theme": {
    "images": {
      "theme_frame": "RabindranathTagore1.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Gitanjali",
  "manifest_version": 2,
  "description": "Amar e gan chheŗechhe tar shôkol ôlongkar\nTomar kachhe rakhe ni ar shajer ôhongkar\nÔlongkar je majhe pôŗe milônete aŗal kôre,\nTomar kôtha đhake je tar mukhôro jhôngkar"
}