Examine source code of Cherry Vampire

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Cherry Vampire",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-018-0ca3dfc7bb661ec53999d358812ce0ab.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(25, 9, 9)",
      "toolbar_text": "rgb(163, 116, 121)",
      "frame": "rgb(72, 7, 7)",
      "tab_background_text": "rgb(167, 79, 99)",
      "toolbar_field": "rgb(87, 16, 33)",
      "toolbar_field_text": "rgb(253, 214, 222)",
      "tab_line": "rgb(223, 17, 51)",
      "popup": "rgb(27, 40, 45)",
      "popup_text": "rgb(242, 224, 228)",
      "tab_loading": "rgb(223, 17, 51)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{430161b1-12ab-484d-b950-f8d470501846}"
    }
  }
}