Examine source code of orange solid dark theme

{
  "description": "orange dark theme for firefox",
  "manifest_version": 2,
  "version": "1.1",
  "name": "orange dark theme",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(43, 43, 43)",
      "toolbar_text": "rgb(255, 126, 86)",
      "frame": "rgb(57, 57, 57)",
      "tab_background_text": "rgb(177, 177, 177)",
      "toolbar_field": "rgb(30, 8, 4)",
      "toolbar_field_text": "rgb(255, 126, 86)",
      "tab_line": "rgb(219, 70, 0)",
      "popup": "rgb(52, 52, 52)",
      "popup_text": "rgb(215, 60, 2)",
      "icons_attention": "rgb(215, 60, 2)",
      "icons": "rgb(219, 86, 46)",
      "toolbar_field_highlight": "rgb(77, 52, 25)",
      "tab_loading": "rgb(219, 70, 0)",
      "popup_highlight": "rgb(176, 67, 16)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fd8c8954-88f4-4c10-a93b-ecd674ab921e}"
    }
  }
}