Examine source code of Pink Black Simple

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Pink Black Simple",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(19, 18, 19)",
      "toolbar_text": "rgb(141, 109, 140)",
      "frame": "rgb(19, 18, 19)",
      "tab_background_text": "rgb(141, 109, 140)",
      "toolbar_field": "rgb(63, 49, 63)",
      "toolbar_field_text": "rgb(141, 109, 140)",
      "tab_line": "rgb(141, 109, 140)",
      "popup": "rgb(19, 18, 19)",
      "popup_text": "rgb(141, 109, 140)",
      "button_background_hover": "rgb(63, 49, 63)",
      "tab_text": "rgb(141, 109, 140)",
      "toolbar_top_separator": "rgb(141, 109, 140)",
      "toolbar_vertical_separator": "rgb(141, 109, 140)",
      "tab_loading": "rgb(141, 109, 140)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3b14d525-abb4-40df-b255-d531b79f7608}"
    }
  }
}