Examine source code of Fall Leaf Orange

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Fall leaf",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(255, 99, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(218, 50, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(218, 86, 0)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 99, 0)",
      "popup": "rgb(255, 149, 0)",
      "popup_text": "rgb(255, 255, 255)",
      "frame_inactive": "rgb(212, 92, 56)",
      "popup_border": "rgb(255, 99, 0)",
      "tab_loading": "rgb(255, 99, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0593bda8-18ab-47be-86b1-7a1215d9ac4c}"
    }
  }
}