Examine source code of Purpolo

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Purpolo",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-002-609370e89a219e0548ac5ef6b4a7dd2e.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(70, 3, 105)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(65, 8, 98)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(84, 6, 127)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(65, 19, 131)",
      "popup": "rgba(70, 15, 94, 0.96)",
      "popup_text": "rgb(252, 252, 255)",
      "icons": "rgba(221, 179, 255, 0.96)",
      "ntp_background": "rgba(43, 3, 62, 0.96)",
      "popup_border": "rgba(124, 0, 199, 0.96)",
      "popup_highlight": "rgba(121, 10, 173, 0.96)",
      "tab_loading": "rgb(65, 19, 131)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3d11e7c0-bcd1-4134-a2bd-1b0a9c1c413c}"
    }
  }
}