Examine source code of Cool Night

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Cool Night",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(1, 40, 60)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 5, 8)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(0, 0, 0, 0.87)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(2, 94, 245)",
      "popup": "rgba(6, 14, 26, 0.89)",
      "popup_text": "rgb(255, 255, 255)",
      "sidebar_border": "rgb(4, 17, 36)",
      "sidebar": "rgb(4, 17, 36)",
      "tab_background_separator": "rgb(6, 18, 30)",
      "tab_loading": "rgb(2, 94, 245)"
    }
  }
}