Examine source code of smooth dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "smooth dark",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgba(11, 81, 221, 0.15)",
      "toolbar_text": "rgb(252, 8, 16)",
      "frame": "rgb(74, 80, 77)",
      "tab_background_text": "rgb(252, 247, 247)",
      "toolbar_field": "rgba(247, 251, 250, 0.15)",
      "toolbar_field_text": "rgb(252, 103, 3)",
      "tab_line": "rgb(4, 252, 252)",
      "popup": "rgb(9, 9, 9)",
      "popup_text": "rgb(54, 252, 5)",
      "tab_loading": "rgb(4, 252, 252)"
    }
  }
}