Examine source code of Superclean

{
  "manifest_version": 2,
  "version": "2.1",
  "name": "Superclean",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(255, 255, 255)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(25, 25, 25)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(255, 255, 255, 0.7)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(0, 0, 0)",
      "popup_border": "rgb(255, 255, 255)",
      "sidebar_border": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(255, 255, 255)",
      "toolbar_field_border_focus": "rgb(255, 255, 255)",
      "toolbar_field_border": "rgb(255, 255, 255)",
      "toolbar_field_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(255, 255, 255)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  }
}