Examine source code of Entirely red

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Entirely red",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(177, 20, 21)",
      "toolbar_field": "rgb(233, 11, 13)",
      "toolbar_field_text": "rgb(255, 0, 0)",
      "tab_line": "rgb(139, 26, 28)",
      "popup": "rgb(255, 0, 0)",
      "popup_text": "rgb(186, 13, 18)",
      "tab_loading": "rgb(139, 26, 28)",
      "bookmark_text": "rgb(255, 0, 1)",
      "frame": "rgb(255, 0, 7)",
      "tab_background_text": "rgb(228, 0, 0)"
    }
  }
}