Examine source code of Lil Peep <3

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Lil Peep <3",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(6, 6, 6, 0.29)",
      "toolbar_text": "rgb(248, 112, 140)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(230, 100, 193, 0.74)",
      "toolbar_field_text": "rgb(245, 245, 245)",
      "tab_line": "rgb(248, 112, 140)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(98, 102, 183)",
      "tab_loading": "rgb(248, 112, 140)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6d87202a-aaa5-4060-a29e-9917fd171f3d}"
    }
  }
}