Route detail

array:7 [
  "_form" => "\Drupal\system\Form\ThemeSettingsForm"
  "_title_callback" => "theme_handler:getName"
  "theme" => "claro"
  "_route" => "system.theme_settings_theme"
  "_route_object" => Symfony\Component\Routing\Route {#1586
    -path: "/admin/appearance/settings/{theme}"
    -host: ""
    -schemes: []
    -methods: array:2 [
      0 => "GET"
      1 => "POST"
    ]
    -defaults: array:2 [
      "_form" => "\Drupal\system\Form\ThemeSettingsForm"
      "_title_callback" => "theme_handler:getName"
    ]
    -requirements: array:1 [
      "_permission" => "administer themes"
    ]
    -options: array:4 [
      "compiler_class" => "Drupal\Core\Routing\RouteCompiler"
      "utf8" => true
      "_admin_route" => true
      "_access_checks" => array:1 [
        0 => "access_check.permission"
      ]
    ]
    -condition: ""
    -compiled: Drupal\Core\Routing\CompiledRoute {#1581
      -variables: array:1 [
        0 => "theme"
      ]
      -tokens: array:2 [
        0 => array:5 [
          0 => "variable"
          1 => "/"
          2 => "[^/]++"
          3 => "theme"
          4 => true
        ]
        1 => array:2 [
          0 => "text"
          1 => "/admin/appearance/settings"
        ]
      ]
      -staticPrefix: ""
      -regex: "{^/admin/appearance/settings/(?P<theme>[^/]++)$}sDu"
      -pathVariables: array:1 [
        0 => "theme"
      ]
      -hostVariables: []
      -hostRegex: null
      -hostTokens: []
      #fit: 14
      #patternOutline: "/admin/appearance/settings/%"
      #numParts: 4
    }
  }
  "_raw_variables" => Symfony\Component\HttpFoundation\InputBag {#1580
    #parameters: array:1 [
      "theme" => "claro"
    ]
  }
  "_controller" => "controller.form:getContentResult"
]