Examine source code of Simple Dark Purple

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Simple Dark Purple",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(13, 0, 25)",
      "toolbar_text": "rgb(225, 234, 239)",
      "frame": "rgb(13, 0, 25)",
      "tab_background_text": "rgb(225, 234, 239)",
      "toolbar_field": "rgb(10, 0, 20)",
      "toolbar_field_text": "rgb(225, 234, 239)",
      "tab_line": "rgba(75, 0, 150, 0.25)",
      "popup": "rgb(10, 0, 20)",
      "popup_text": "rgb(225, 234, 239)",
      "ntp_background": "rgb(10, 0, 20)",
      "popup_border": "rgb(75, 0, 150)",
      "sidebar_border": "rgb(10, 0, 20)",
      "sidebar": "rgb(10, 0, 20)",
      "tab_loading": "rgb(100, 0, 200)",
      "tab_selected": "rgba(75, 0, 150, 0.15)",
      "toolbar_field_border_focus": "rgb(75, 0, 150)",
      "toolbar_top_separator": "rgb(25, 0, 50)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0bac1482-fdf2-4710-ad6a-974114bcba62}"
    }
  }
}