Examine source code of Blue-Like

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Blue-Like",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(220, 240, 249)",
      "toolbar_text": "rgb(67, 109, 125)",
      "frame": "rgb(70, 106, 121)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(255, 255, 255, 0.73)",
      "toolbar_field_text": "rgb(67, 109, 125)",
      "tab_line": "rgb(187, 72, 28)",
      "popup": "rgb(123, 169, 191)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(187, 72, 28)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1696ba09-daea-432a-bf5e-d26ce3fba0a6}"
    }
  }
}