Examine source code of Dark and Brownish theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark and Brownish theme",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(32, 32, 32)",
      "toolbar_text": "rgb(226, 181, 130)",
      "frame": "rgb(32, 32, 32)",
      "tab_background_text": "rgb(227, 227, 227)",
      "toolbar_field": "rgb(32, 32, 32)",
      "toolbar_field_text": "rgb(226, 181, 130)",
      "tab_line": "rgb(226, 181, 130)",
      "popup": "rgb(32, 32, 32)",
      "popup_text": "rgb(226, 181, 130)",
      "tab_loading": "rgb(226, 181, 130)"
    }
  }
}