Examine source code of Dark-Purple

{
  "name": "Dark-Purple",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "backgroundheart.png"
    },
    "colors": {
      "frame": "rgba(15, 15, 15, 1)",
      "tab_background_text": "rgba(138, 138, 138, 1)",
      "toolbar": "rgba(54, 54, 54, 0.88)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(15, 15, 15, 1)",
      "toolbar_field_text": "rgba(138, 138, 138, 1)",
      "tab_line": "rgba(92, 27, 105, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{77106469-323a-4d50-8f17-c5a5a5e8253e}"
    }
  }
}