Examine source code of Forest Green Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Forest Green",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(7, 47, 25)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(11, 59, 33)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(11, 59, 33)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(7, 47, 25)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a366fd63-6e74-49d5-b416-4a99d5d6f67f}"
    }
  }
}