Remove $type, and remove the initial '' for $template

src/Widget/BaseWidget.php

@@ -14,13 +14,12 @@ use Twig\Environment;
 class BaseWidget implements WidgetInterface
 {
     protected $name = 'Nameless widget';
-    protected $type = 'widget';
     protected $target = Target::NOWHERE;
     protected $zone = RequestZone::EVERYWHERE;
     protected $priority = 0;
 
     /** @var string */
-    protected $template = '';
+    protected $template;
 
     /** @var Response */
     protected $response;
@@ -47,18 +46,6 @@ class BaseWidget implements WidgetInterface
         return $this->name;
     }
 
-    public function setType(string $type): WidgetInterface
-    {
-        $this->type = $type;
-
-        return $this;
-    }
-
-    public function getType(): string
-    {
-        return $this->type;
-    }
-
     public function setTarget(string $target): WidgetInterface
     {
         $this->target = $target;
@@ -110,7 +97,7 @@ class BaseWidget implements WidgetInterface
         return $this;
     }
 
-    public function getTemplate(): string
+    public function getTemplate(): ?string
     {
         return $this->template;
     }

src/Widget/BoltHeaderWidget.php

@@ -10,7 +10,6 @@ use Bolt\Snippet\Target;
 class BoltHeaderWidget extends BaseWidget implements ResponseAware
 {
     protected $name = 'Bolt Header Widget';
-    protected $type = 'snippet';
     protected $target = Target::NOWHERE;
     protected $zone = RequestZone::FRONTEND;
 

src/Widget/CanonicalLinkWidget.php

@@ -10,7 +10,6 @@ use Bolt\Snippet\Target;
 class CanonicalLinkWidget extends BaseWidget
 {
     protected $name = 'Canonical Link';
-    protected $type = 'widget';
     protected $target = Target::NOWHERE;
     protected $zone = RequestZone::NOWHERE;
     protected $priority = 200;

src/Widget/NewsWidget.php

@@ -14,7 +14,6 @@ use GuzzleHttp\Exception\RequestException;
 class NewsWidget extends BaseWidget implements TwigAware, RequestAware
 {
     protected $name = 'News Widget';
-    protected $type = 'widget';
     protected $target = Target::WIDGET_BACK_DASHBOARD_ASIDE_TOP;
     protected $priority = 150;
     protected $template = '@bolt/widgets/news.twig';

src/Widget/WeatherWidget.php

@@ -9,7 +9,6 @@ use Bolt\Snippet\Target;
 class WeatherWidget extends BaseWidget implements TwigAware
 {
     protected $name = 'Weather Widget';
-    protected $type = 'widget';
     protected $target = Target::WIDGET_BACK_DASHBOARD_ASIDE_TOP;
     protected $priority = 200;
     protected $template = '@bolt/widgets/weather.twig';

src/Widget/WidgetInterface.php

@@ -8,8 +8,6 @@ interface WidgetInterface
 {
     public function getName(): string;
 
-    public function getType(): string;
-
     /**
      * @return string from Bolt\Snippet\Target constants enum
      */