Examine source code of Base2Tone Forest

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Base2Tone Forest",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(53, 59, 53)",
      "toolbar_text": "rgb(200, 228, 200)",
      "frame": "rgb(53, 59, 53)",
      "tab_background_text": "rgb(177, 196, 79)",
      "toolbar_field": "rgb(104, 125, 104)",
      "toolbar_field_text": "rgb(229, 251, 121)",
      "tab_line": "rgb(191, 212, 84)",
      "popup": "rgb(53, 59, 53)",
      "popup_text": "rgb(191, 212, 84)",
      "tab_loading": "rgb(191, 212, 84)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2ec97eb2-8c11-4f59-b7d2-16311a5bf345}"
    }
  }
}