Examine source code of Pink & Matte Black

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Pink & Matte Black",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-012-1e971c5fbb8dec3acbd76dd6c6819de9.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(248, 112, 140)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(248, 112, 140)",
      "toolbar_field": "rgb(40, 40, 43)",
      "toolbar_field_text": "rgb(248, 112, 140)",
      "tab_line": "rgb(248, 112, 140)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(248, 112, 140)",
      "tab_loading": "rgb(248, 112, 140)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f29ae6c7-9d62-4c3a-bc2e-52ddd641cb3a}"
    }
  }
}