Examine source code of Winter is Coming VS Code

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Winter is Coming",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(11, 41, 66)",
      "toolbar_text": "rgb(210, 222, 231)",
      "frame": "rgb(1, 22, 39)",
      "tab_background_text": "rgb(119, 153, 187)",
      "toolbar_field": "rgb(11, 37, 58)",
      "toolbar_field_text": "rgb(167, 219, 247)",
      "tab_line": "rgb(33, 159, 213)",
      "popup": "rgb(11, 41, 66)",
      "popup_text": "rgb(210, 222, 231)",
      "tab_loading": "rgb(33, 159, 213)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fbb955d3-703f-4f8f-8070-1f05e0191f51}"
    }
  }
}