Examine source code of Cheese and Cheese

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Cheese and Cheese",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-040-0df8e190c15355cd3fa41a58e86426a9.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(241, 252, 150)",
      "toolbar_text": "rgb(91, 86, 125)",
      "frame": "rgb(244, 253, 174)",
      "tab_background_text": "rgb(91, 86, 125)",
      "toolbar_field": "rgb(244, 253, 174)",
      "toolbar_field_text": "rgb(91, 86, 125)",
      "tab_line": "rgb(91, 86, 125)",
      "popup": "rgb(244, 253, 174)",
      "popup_text": "rgb(91, 86, 125)",
      "tab_loading": "rgb(91, 86, 125)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e0f8fbb9-fe98-460b-bd40-8eca96a7930d}"
    }
  }
}