Examine source code of 22H2 Dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "22H2 Dark",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(44, 44, 44)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(32, 32, 32)",
      "tab_background_text": "rgb(204, 204, 204)",
      "toolbar_field": "rgb(44, 44, 44)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(44, 44, 44)",
      "popup": "rgb(44, 44, 44)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(56, 56, 56)",
      "button_background_hover": "rgb(56, 56, 56)",
      "icons_attention": "rgb(0, 120, 215)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(25, 25, 25)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgb(0, 120, 215)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgb(0, 120, 215)",
      "tab_selected": "rgb(44, 44, 44)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(58, 58, 58)",
      "toolbar_field_border_focus": "rgb(0, 120, 215)",
      "toolbar_field_border": "rgb(83, 83, 83)",
      "toolbar_field_focus": "rgb(29, 29, 29)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(0, 120, 215)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(29, 29, 29)",
      "tab_loading": "rgb(44, 44, 44)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{37d3f0aa-051c-4dec-9321-6724963c8067}"
    }
  }
}