Examine source code of Childish Books

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Childish Books",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-043-dfcec5f93f7a29f97b030eda45530203.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(45, 45, 53)",
      "toolbar_text": "rgb(254, 139, 102)",
      "frame": "rgb(255, 255, 255)",
      "tab_background_text": "rgb(56, 63, 66)",
      "toolbar_field": "rgb(45, 50, 53)",
      "toolbar_field_text": "rgb(0, 205, 255)",
      "tab_line": "rgb(251, 180, 61)",
      "popup": "rgb(204, 221, 231)",
      "popup_text": "rgb(255, 71, 0)",
      "tab_loading": "rgb(251, 180, 61)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e7ca9d98-380a-4eea-9ec4-66ca3a17c02f}"
    }
  }
}