Examine source code of Cool Sci-Fi

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Cool Sci-Fi",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-036-40a272fe657f748396e017c7a64ee2dc.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(1, 2, 5)",
      "toolbar_text": "rgb(0, 251, 255)",
      "frame": "rgb(2, 4, 164)",
      "tab_background_text": "rgb(159, 161, 161)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(255, 165, 0)",
      "tab_line": "rgb(0, 255, 246)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(160, 164, 255)",
      "tab_loading": "rgb(0, 255, 246)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{af49d61f-4321-4986-8053-d8faba3f2e65}"
    }
  }
}