Examine source code of Electric Magma

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Electric Magma",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg",
        "images/1.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top",
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(40, 66, 75)",
      "toolbar_text": "rgb(254, 232, 53)",
      "frame": "rgb(254, 232, 53)",
      "tab_background_text": "rgb(40, 66, 75)",
      "toolbar_field": "rgb(158, 231, 249)",
      "toolbar_field_text": "rgb(0, 89, 113)",
      "tab_line": "rgb(254, 232, 53)",
      "popup": "rgb(158, 231, 249)",
      "popup_text": "rgb(0, 89, 113)",
      "tab_loading": "rgb(254, 232, 53)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c09206e7-2183-425b-838e-7283856ea439}"
    }
  }
}