Examine source code of Material Design Night

{
  "manifest_version": 2,
  "version": "3.0",
  "name": "Material Design Night",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(9, 22, 31)",
      "toolbar_field": "rgba(9, 22, 31, 0.83)",
      "toolbar_field_text": "rgb(250, 250, 250)",
      "tab_line": "rgb(41, 127, 186)",
      "popup": "rgb(9, 22, 31)",
      "popup_text": "rgb(249, 253, 255)",
      "tab_loading": "rgb(41, 127, 186)",
      "bookmark_text": "rgb(244, 244, 244)",
      "frame": "rgb(16, 40, 56)",
      "tab_background_text": "rgb(255, 255, 255)"
    }
  }
}