diff --git a/src/Editor/Editor.php b/src/Editor/Editor.php
index 97232a1..cf0f9cb 100644
--- a/src/Editor/Editor.php
+++ b/src/Editor/Editor.php
@@ -403,7 +403,7 @@ class Editor
     /**
      * Handler for the write file command (ctrl-W)
      *
-     * @return void
+     * @return bool
      */
     private function doWriteFile(): bool
     {
@@ -501,7 +501,7 @@ class Editor
                 })
                 ->setItems($items)
                 ->setTitle($wd)
-                ->display(0, 0, 70, 20, $this->filename);
+                ->display(0, 0, 70, 0, $this->filename);
             if ($sel === null) {
                 $this->redrawEditor();
                 return;
@@ -536,8 +536,8 @@ class Editor
 
         $width = min(90, $w - 10);
         $height = min(40, $h - 6);
-        $left = round(($w / 2) - ($width / 2));
-        $top = round(($h / 2) - ($height / 2));
+        $left = (int)round(($w / 2) - ($width / 2));
+        $top = (int)round(($h / 2) - ($height / 2));
 
         $msg = new MessageBox($this->term, self::$helpText, "Help");
         $this->redrawInfoBar([ '↑/↓' => 'Scroll', '^C' => 'Close' ]);
@@ -562,9 +562,9 @@ class Editor
         EOT."\n/ Version: ".APP_VERSION."\n/ Built at: ".APP_BUILDDATE;
 
         $width = 60;
-        $height = 22;
-        $left = round(($w / 2) - ($width / 2));
-        $top = round(($h / 2) - ($height / 2));
+        $height = 0; // 22;
+        $left = 0; // (int)round(($w / 2) - ($width / 2));
+        $top = 0; // (int)round(($h / 2) - ($height / 2));
 
         $msg = new MessageBox($this->term, $text, "About JSONEdit ".APP_VERSION);
         $this->redrawInfoBar([ '↑/↓' => 'Scroll', '^C' => 'Close' ]);
@@ -654,7 +654,7 @@ class Editor
         $deleteKey = basename($path);
         $collNode = $this->list->getNodeForPath($parentPath);
         if ($collNode instanceof ArrayNode) {
-            $collNode->removeIndex($deleteKey);
+            $collNode->removeIndex(intval($deleteKey));
             $this->list->parseTree();
             $this->redrawEditor();
             $this->modified = true;
diff --git a/src/Editor/Menu.php b/src/Editor/Menu.php
index efdfdf0..b403da6 100644
--- a/src/Editor/Menu.php
+++ b/src/Editor/Menu.php
@@ -83,12 +83,12 @@ class Menu
      * @param string|int|null $value
      * @return mixed
      */
-    public function display(int $left, int $top, int $width, int $height = 0, string|int|null $value): mixed
+    public function display(int $left, int $top, int $width, int $height = 0, string|int|null $value = null): mixed
     {
         //$this->index = 0;
 
         $keys = array_keys($this->items);
-        $this->index = array_search($value, $keys) ?? 0;
+        $this->index = array_search($value, $keys) ?: 0;
 
         [$w,$h] = $this->terminal->getSize();
         if ($height == 0) {
@@ -187,7 +187,7 @@ class Menu
         $thumbTop = round(($visibleItems - 1) / count($this->items) * $scrollTop);
         $thumbBottom = round(($visibleItems) / count($this->items) * $scrollBottom);
 
-        $tleft = round(($width / 2) - ((mb_strlen($this->title) + 2) / 2));
+        $tleft = (int)round(($width / 2) - ((mb_strlen($this->title) + 2) / 2));
 
         // draw head
         echo "\e[40;37m";
diff --git a/src/Editor/MessageBox.php b/src/Editor/MessageBox.php
index b4b1b77..39a4433 100644
--- a/src/Editor/MessageBox.php
+++ b/src/Editor/MessageBox.php
@@ -53,13 +53,15 @@ class MessageBox
         
         [$w,$h] = $this->terminal->getSize();
         if ($height == 0) {
-            $height = min($h - 5, count($wrapped) + 4);
+            $height = min($h - $top - 2, count($wrapped) + 4);
         }
+        // again? oh well..
+        $height = min($height, $h - $top - 2);
         if ($left == 0) {
             $left = round(($w - $width) / 2);
         }
         if ($top == 0) {
-            $top = round(($h - $height) / 2);
+            $top = (int)round(($h - $height) / 2);
         }
         
         $maxScroll = (count($wrapped) > $height) ? count($wrapped) - $height + 4 : 0;
@@ -127,6 +129,7 @@ class MessageBox
      * @return void
      */
     private function redraw(int $left, int $top, int $width, int $height, array $wrapped, string $title, int $maxScroll) {
+
         $visibleItems = $height - 4;
 
         // calculate scrollbar thumb positions
@@ -150,6 +153,8 @@ class MessageBox
             ->writeAt($left, $top + $height - 1, self::U_CORNER_BOTTOMLEFT.str_repeat(self::U_EDGE_HORIZONTAL,$width - 2).self::U_CORNER_BOTTOMRIGHT)
             ;
         for ($n = 0; $n < $visibleItems; $n++) {
+            $pre = '';
+            $post = '';
             if (isset($wrapped[$n+$this->scroll])) {
                 $line = $wrapped[$n+$this->scroll]??null;
                 if (str_starts_with($line, "# ")) {
diff --git a/src/List/TreeList.php b/src/List/TreeList.php
index 581cb97..65c45da 100644
--- a/src/List/TreeList.php
+++ b/src/List/TreeList.php
@@ -152,10 +152,7 @@ class TreeList implements Countable, IteratorAggregate
             return;
         }
         $entry = $this->list[$key];
-        if (!$entry) {
-            echo "\e[0m\e[K\e[31mE_NO_ENTRY_IN_LIST\e[0m";
-            return;
-        }
+
         echo "\e[{$screenRow};1H\e[0m";
         echo ($selected?"\e[44;97m":"\e[0;37m")."\e[K";
         echo "\e[90m".str_repeat(
@@ -204,26 +201,27 @@ class TreeList implements Countable, IteratorAggregate
                     : "\e[36m{$entry->key}:\e[37m "
                 ));
         }
-        if ($entry->node instanceof ArrayNode) {
+        $node = $entry->node;
+        if ($node instanceof ArrayNode) {
             echo "[" . (Settings::$compactGroups ? "…]":"");
-            if ($entry->node->isCollapsed()) {
+            if ($node->isCollapsed()) {
                 if (!Settings::$collapseBefore) echo " \e[90m\u{25ba}";
-                echo " \e[90;2m[".count($entry->node->items)."]\e[22m";
+                echo " \e[90;2m[".count($node->items)."]\e[22m";
                 if (!Settings::$compactGroups) echo "\e[37m ]";
             } else {
                 if (!Settings::$collapseBefore) echo " \e[90m\u{25bc}";
             }
-        } elseif ($entry->node instanceof ObjectNode) {
+        } elseif ($node instanceof ObjectNode) {
             echo "{" . (Settings::$compactGroups ? "…}":"");
-            if ($entry->node->isCollapsed()) {
+            if ($node->isCollapsed()) {
                 if (!Settings::$collapseBefore) echo " \e[90m\u{25ba}";
-                echo " \e[90;2;3m".join(", ",array_keys($entry->node->properties))."\e[22;23m";
+                echo " \e[90;2;3m".join(", ",array_keys($node->properties))."\e[22;23m";
                 if (!Settings::$compactGroups) echo "\e[37m }";
             } else {
                 if (!Settings::$collapseBefore) echo " \e[90m\u{25bc}";
             }
-        } elseif ($entry->node instanceof ValueNode) {
-            $value = $entry->node->value;
+        } elseif ($node instanceof ValueNode) {
+            $value = $node->value;
             echo match (gettype($value)) {
                 'string' => "\e[33m",
                 'integer' => "\e[94m",
@@ -232,7 +230,7 @@ class TreeList implements Countable, IteratorAggregate
                 'NULL' => "\e[31m",
                 default => "",
             };
-            echo json_encode($entry->node->value, JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE);
+            echo json_encode($node->value, JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE);
         }
         
     }
diff --git a/src/Tree/ArrayNode.php b/src/Tree/ArrayNode.php
index 717a3e7..88c042d 100644
--- a/src/Tree/ArrayNode.php
+++ b/src/Tree/ArrayNode.php
@@ -21,10 +21,9 @@ class ArrayNode extends Node implements CollapsibleNode
         $this->items = array_values($this->items);
     }
 
-    public function __clone()
+    public function __clone(): void
     {
-        $items = array_map(fn($v) => clone $v, $this->items);
-        return new ArrayNode($items);
+        $this->items = array_map(fn($v) => clone $v, $this->items);
     }
 
     public function jsonSerialize(): mixed
diff --git a/src/Tree/ObjectNode.php b/src/Tree/ObjectNode.php
index 0c51807..3b36e12 100644
--- a/src/Tree/ObjectNode.php
+++ b/src/Tree/ObjectNode.php
@@ -37,13 +37,12 @@ class ObjectNode extends Node implements CollapsibleNode
         unset($this->properties[$key]);
     }
 
-    public function __clone()
+    public function __clone(): void
     {
-        $properties = array_combine(
+        $this->properties = array_combine(
             array_keys($this->properties),
             array_map(fn($v) => clone $v, $this->properties)
         );
-        return new ObjectNode($properties);
     }
 
     public function jsonSerialize(): mixed