Examine source code of Ember heart

{
  "name": "Ember heart",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Unbenannt.png"
    },
    "colors": {
      "frame": "rgba(43, 1, 0, 1)",
      "tab_background_text": "rgba(171, 113, 63, 1)",
      "toolbar": "rgba(255, 194, 97, 0)",
      "bookmark_text": "rgba(255, 140, 25, 1)",
      "toolbar_field": "rgba(110, 83, 60, 0.62)",
      "toolbar_field_text": "rgba(194, 13, 0, 1)",
      "tab_line": "rgba(255, 9, 0, 0.56)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e7272002-150f-4ddf-a57e-f844664dbef9}"
    }
  }
}