Examine source code of Clean Deep Purple

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Clean Deep Purple",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(45, 1, 79)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(29, 14, 52)",
      "tab_background_text": "rgb(215, 213, 213)",
      "toolbar_field": "rgb(63, 1, 111)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(189, 147, 249)",
      "popup": "rgb(115, 68, 181)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(189, 147, 249)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d2b2e5c0-a871-445f-abdf-e60365d7e2b2}"
    }
  }
}