Examine source code of Just Eglantine

{
  "theme": {
    "images": {
      "theme_frame": "rose.jpg"
    },
    "colors": {
      "frame": "#c1d7d9",
      "tab_background_text": "#4c2b4f"
    }
  },
  "version": "2.0",
  "name": "Just Eglantine",
  "manifest_version": 2,
  "description": "Eau de Rose,\nBeauté,Beauty,Drops,Rural,Flower,\nPink,Blue,Waterfalls,Nature,Organic,\nBiologique,Holidays,Freshness,Spring,\nSummer,Water,Chutes d'Eau,\nSavage,River,Life,Woman"
}