Examine source code of Purple Red personal

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Purple Red",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(20, 2, 11)",
      "toolbar_text": "rgb(255, 74, 174)",
      "frame": "rgb(28, 10, 35)",
      "tab_background_text": "rgb(242, 98, 129)",
      "toolbar_field": "rgb(54, 6, 45)",
      "toolbar_field_text": "rgb(255, 74, 174)",
      "tab_line": "rgb(255, 74, 174)",
      "popup": "rgb(3, 1, 4)",
      "popup_text": "rgb(242, 98, 129)",
      "ntp_background": "rgb(37, 14, 47)",
      "tab_loading": "rgb(255, 74, 174)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{952ab8f5-d1e4-4c50-929f-37060899c22a}"
    }
  }
}