Examine source code of Seventeenth Heaven

{
  "name": "Seventeenth Heaven",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Seventeenth Heaven(1).png"
    },
    "colors": {
      "frame": "rgba(184, 220, 245, 1)",
      "tab_background_text": "rgba(219, 21, 30, 1)",
      "toolbar": "rgba(219, 21, 30, 1)",
      "bookmark_text": "rgba(230, 178, 41, 1)",
      "toolbar_field": "rgba(184, 220, 245, 1)",
      "toolbar_field_text": "rgba(219, 21, 30, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{99d24793-a5b3-49cc-bd84-39d6f0dce053}"
    }
  }
}