Examine source code of pumpkin spice

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "pumpkin spice",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgba(255, 162, 0, 0.61)",
      "frame": "rgb(69, 56, 49)",
      "tab_background_text": "rgb(243, 221, 185)",
      "toolbar_field": "rgba(255, 255, 255, 0.82)",
      "toolbar_field_text": "rgb(125, 56, 58)",
      "tab_line": "rgba(255, 116, 0, 0.44)",
      "popup": "rgb(69, 56, 49)",
      "popup_text": "rgb(9, 8, 6)",
      "tab_loading": "rgba(255, 116, 0, 0.44)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f6fbf2eb-a546-490a-959c-dce4120ae540}"
    }
  }
}