diff --git a/src/ui/MainWinddow.ui b/src/ui/MainWinddow.ui
index 58c9604..accfbe8 100644
--- a/src/ui/MainWinddow.ui
+++ b/src/ui/MainWinddow.ui
@@ -349,7 +349,7 @@
             <rect>
              <x>0</x>
              <y>0</y>
-             <width>725</width>
+             <width>649</width>
              <height>837</height>
             </rect>
            </property>
diff --git a/src/ui/MainWinddow_ui.py b/src/ui/MainWinddow_ui.py
index 98a8f1e..93725c7 100644
--- a/src/ui/MainWinddow_ui.py
+++ b/src/ui/MainWinddow_ui.py
@@ -216,7 +216,7 @@ class Ui_MainWindow(object):
         self.scrollArea_2.setWidgetResizable(True)
         self.scrollAreaWidgetContents_2 = QWidget()
         self.scrollAreaWidgetContents_2.setObjectName(u"scrollAreaWidgetContents_2")
-        self.scrollAreaWidgetContents_2.setGeometry(QRect(0, 0, 725, 837))
+        self.scrollAreaWidgetContents_2.setGeometry(QRect(0, 0, 649, 837))
         self.verticalLayout_3 = QVBoxLayout(self.scrollAreaWidgetContents_2)
         self.verticalLayout_3.setObjectName(u"verticalLayout_3")
         self.verticalLayout_3.setContentsMargins(0, 0, 0, 0)
diff --git a/src/ui/MainWindow.py b/src/ui/MainWindow.py
index b74121f..65a3526 100644
--- a/src/ui/MainWindow.py
+++ b/src/ui/MainWindow.py
@@ -3,7 +3,7 @@ import os
 import time
 
 from PySide6.QtCore import Qt, QSize
-from PySide6.QtGui import QCursor, QPixmap, QPainter, QAction
+from PySide6.QtGui import QCursor, QPixmap, QPainter, QAction, QIcon
 from PySide6.QtWidgets import QLabel, QMainWindow, QApplication, QStyleFactory, QMenu, QTreeWidgetItem
 from PySide6.QtPdf import QPdfDocument
 
@@ -678,52 +678,62 @@ class MainWindow(QMainWindow):
             if node_type == "TreeNode":
                 # Kontextmenü für TreeNode
                 action_add_child = QAction("Unterknoten hinzufügen", self)
+                action_add_child.setIcon(QIcon(QIcon.fromTheme(u"folder-new")))
                 action_add_child.triggered.connect(lambda: self._add_tree_node_child(item))
                 menu.addAction(action_add_child)
                 
                 action_add_xsl = QAction("XSL-Datei hinzufügen", self)
+                action_add_xsl.setIcon(QIcon(QIcon.fromTheme("document-new")))
                 action_add_xsl.triggered.connect(lambda: self._add_xsl_file_to_node(item))
                 menu.addAction(action_add_xsl)
                 
                 menu.addSeparator()
                 
                 action_edit = QAction("Bearbeiten", self)
+                action_edit.setIcon(QIcon(QIcon.fromTheme(QIcon.ThemeIcon.DocumentProperties)))
                 action_edit.triggered.connect(lambda: self._edit_tree_node(item))
                 menu.addAction(action_edit)
                 
                 action_delete = QAction("Löschen", self)
+                action_delete.setIcon(QIcon(QIcon.fromTheme(QIcon.ThemeIcon.EditDelete)))
                 action_delete.triggered.connect(lambda: self._delete_tree_node(item))
                 menu.addAction(action_delete)
                 
             elif node_type == "XslFile":
                 # Kontextmenü für XslFile
                 action_add_xml = QAction("XML-Datei hinzufügen", self)
+                action_add_xml.setIcon(QIcon(QIcon.fromTheme("document-new")))
                 action_add_xml.triggered.connect(lambda: self._add_xml_file_to_xsl(item))
                 menu.addAction(action_add_xml)
                 
                 menu.addSeparator()
                 
                 action_edit = QAction("Bearbeiten", self)
+                action_edit.setIcon(QIcon(QIcon.fromTheme(QIcon.ThemeIcon.DocumentProperties)))
                 action_edit.triggered.connect(lambda: self._edit_xsl_file(item))
                 menu.addAction(action_edit)
                 
                 action_delete = QAction("Löschen", self)
+                action_delete.setIcon(QIcon(QIcon.fromTheme(QIcon.ThemeIcon.EditDelete)))
                 action_delete.triggered.connect(lambda: self._delete_xsl_file(item))
                 menu.addAction(action_delete)
                 
             elif node_type == "XmlFile":
                 # Kontextmenü für XmlFile
                 action_edit = QAction("Bearbeiten", self)
+                action_edit.setIcon(QIcon(QIcon.fromTheme(QIcon.ThemeIcon.DocumentProperties)))
                 action_edit.triggered.connect(lambda: self._edit_xml_file(item))
                 menu.addAction(action_edit)
                 
                 action_delete = QAction("Löschen", self)
+                action_delete.setIcon(QIcon(QIcon.fromTheme(QIcon.ThemeIcon.EditDelete)))
                 action_delete.triggered.connect(lambda: self._delete_xml_file(item))
                 menu.addAction(action_delete)
                 
             else:
                 # Unbekannter Typ oder leerer Bereich - Menü für Root-Elemente
                 action_add_tree_node = QAction("Unterknoten hinzufügen", self)
+                action_add_tree_node.setIcon(QIcon(QIcon.fromTheme(u"folder-new")))
                 action_add_tree_node.triggered.connect(lambda: self._add_root_tree_node())
                 menu.addAction(action_add_tree_node)