Examine source code of Soft purple

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Soft purple",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-037-b73f9b34467ba541de861f5b4c0c6316.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(114, 82, 122)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(65, 0, 84)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(61, 43, 68)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(30, 132, 162)",
      "popup": "rgb(114, 82, 122)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(166, 129, 176)",
      "button_background_hover": "rgb(65, 0, 84)",
      "icons": "rgb(230, 214, 234)",
      "ntp_background": "rgb(72, 26, 83)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgb(30, 132, 162)",
      "popup_highlight": "rgb(114, 82, 122)",
      "tab_background_separator": "rgb(30, 132, 162)",
      "tab_loading": "rgb(30, 132, 162)",
      "tab_selected": "rgb(114, 82, 122)",
      "toolbar_field_border_focus": "rgb(30, 132, 162)",
      "toolbar_field_border": "rgb(30, 132, 162)",
      "toolbar_vertical_separator": "rgb(255, 10, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a073a6a4-2b28-4e73-be08-07efcd824e49}"
    }
  }
}