Examine source code of uwu

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "uwu",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-012-1e971c5fbb8dec3acbd76dd6c6819de9.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(31, 34, 61)",
      "toolbar_text": "rgb(157, 157, 157)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(180, 180, 180)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(71, 85, 102)",
      "tab_line": "rgb(97, 97, 97)",
      "popup": "rgb(46, 47, 59)",
      "popup_text": "rgb(209, 211, 214)",
      "tab_loading": "rgb(97, 97, 97)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e3bee186-9a57-4478-b28c-5ebc13e7e070}"
    }
  }
}