Examine source code of Teal Theme for Dark Mode

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Teal",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(131, 221, 216)",
      "toolbar_text": "rgb(17, 79, 78)",
      "frame": "rgb(70, 70, 70)",
      "tab_background_text": "rgb(192, 251, 250)",
      "toolbar_field": "rgb(70, 70, 70)",
      "toolbar_field_text": "rgb(192, 251, 250)",
      "tab_line": "rgb(250, 111, 56)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(70, 70, 70)",
      "tab_loading": "rgb(250, 111, 56)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b4919053-fc80-4368-9171-30018ce4c728}"
    }
  }
}