Examine source code of Heaven Waiting

{
  "name": "Heaven Waiting",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "HeavenAwaitingH.jpg"
    },
    "colors": {
      "frame": "rgba(248, 227, 255, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(252, 240, 255, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(228, 221, 230, 0.09)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7cd339e1-5c71-4fd6-905d-244985711e6d}"
    }
  }
}