Examine source code of wodpicker

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "wodpicker",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(216, 33, 72)",
      "toolbar_text": "rgb(255, 243, 249)",
      "frame": "rgb(21, 29, 59)",
      "tab_background_text": "rgb(218, 219, 189)",
      "toolbar_field": "rgb(21, 29, 59)",
      "toolbar_field_text": "rgb(255, 243, 249)",
      "tab_line": "rgb(110, 191, 139)",
      "popup": "rgb(21, 29, 59)",
      "popup_text": "rgb(255, 243, 249)",
      "button_background_active": "rgb(110, 191, 139)",
      "button_background_hover": "rgba(110, 191, 139, 0.57)",
      "ntp_text": "rgb(21, 29, 59)",
      "tab_loading": "rgb(110, 191, 139)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5e225ee1-87b5-452f-bd3c-1cae91a707b3}"
    }
  }
}