Examine source code of Tokyo Night V3

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Tokyo Night by xMdb",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(26, 27, 38)",
      "toolbar_text": "rgb(169, 177, 214)",
      "frame": "rgb(30, 32, 46)",
      "tab_background_text": "rgb(169, 177, 214)",
      "toolbar_field": "rgb(30, 32, 46)",
      "toolbar_field_text": "rgb(169, 177, 214)",
      "tab_line": "rgb(169, 177, 214)",
      "popup": "rgb(26, 27, 38)",
      "popup_text": "rgb(98, 102, 183)",
      "ntp_background": "rgb(22, 22, 30)",
      "tab_loading": "rgb(169, 177, 214)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6c8ef7a0-0691-4323-8bdc-af24f54985ec}"
    }
  }
}