Examine source code of Diskodex

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Diskodex",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(3, 4, 13)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(20, 23, 45)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(10, 22, 51)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(135, 0, 22)",
      "popup": "rgb(31, 37, 61)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_selected": "rgb(136, 0, 1)",
      "tab_loading": "rgb(135, 0, 22)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b962d37e-e4cb-44ce-9820-0b19d43fb191}"
    }
  }
}