Examine source code of Dark Blue Refresh 2023

{
  "manifest_version": 2,
  "name": "Dark Blue Refresh 2023",
  "version": "5.4",
  "description": "v5.4 Dark Blue Refresh 2023 - Created by Daniel with support from mibbit-user freaktechnik",
  "theme": {
    "colors": {
      "frame": "#021631",
      "toolbar": "#021631",
      "toolbar_top_separator": "#022E64",
      "tab_background_text": "Silver",
      "toolbar_field": "#021631",
      "toolbar_field_text": "white",
      "toolbar_field_border": "#021631",
      "toolbar_field_border_focus": "#194775",
      "toolbar_vertical_separator": "#194775",
      "tab_text": "silver",
      "tab_line": "#194775",
      "bookmark_text": "white",
      "popup": "#021631",
      "popup_highlight": "#022E64",
      "popup_highlight_text": "yellow"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c4dbfad6-c81b-49e8-b7a6-89937fc6f84a}"
    }
  }
}