Examine source code of stayux-violeta

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "stayux-violeta",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-009-f069b97f439938a011297c84464f0df6.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(236, 236, 241)",
      "toolbar_text": "rgb(39, 27, 99)",
      "frame": "rgb(250, 250, 250)",
      "tab_background_text": "rgb(39, 27, 99)",
      "toolbar_field": "rgb(250, 250, 250)",
      "toolbar_field_text": "rgb(39, 27, 99)",
      "tab_line": "rgb(62, 29, 231)",
      "popup": "rgb(236, 236, 241)",
      "popup_text": "rgb(39, 27, 99)",
      "tab_loading": "rgb(62, 29, 231)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fc18ff71-138e-465f-96e6-06a75e1f6cc3}"
    }
  }
}