diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1377554
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.swp
diff --git a/blacknotes.qml b/blacknotes.qml
index 92b7ac8..8124212 100644
--- a/blacknotes.qml
+++ b/blacknotes.qml
@@ -4,7 +4,7 @@
 //
 //  Copyright (C)2010 Nicolas Froment (lasconic)
 //  Copyright (C)2014 Jörn Eichler (heuchi)
-//  Copyright (C)2012-2019 Joachim Schmitz (Jojo-Schmitz)
+//  Copyright (C)2012-2024 Joachim Schmitz (Jojo-Schmitz)
 //
 //  This program is free software; you can redistribute it and/or modify
 //  it under the terms of the GNU General Public License version 2.
@@ -20,13 +20,24 @@
 //=============================================================================
 
 import QtQuick 2.9
-import QtQuick.Dialogs 1.2
+//import QtQuick.Dialogs 1.2
 import MuseScore 3.0
 
 MuseScore {
    version:  "3.0"
-   description: "This plugin paints all chords and rests in black"
+   description: qsTr("This plugin paints all chords and rests in black")
    menuPath: "Plugins.Notes.Color Notes in Black"
+   //4.4 title: "Color Notes in Black"
+   //4.4 thumbnailName: "color_notes.png"
+   //4.4 categoryCode: "color-notes"
+
+   Component.onCompleted : {
+      if (mscoreMajorVersion >= 4 && mscoreMinorVersion <= 3) {
+         title = "Color Notes in Black";
+         thumbnailName = "color_notes.png";
+         categoryCode = "color-notes";
+      }
+   }
 
    MessageDialog {
       id: versionError
@@ -34,14 +45,14 @@ MuseScore {
       title: qsTr("Unsupported MuseScore Version")
       text: qsTr("This plugin needs MuseScore 3.0.2 or later")
       onAccepted: {
-         Qt.quit()
+         (typeof(quit) === 'undefined' ? Qt.quit : quit)()
          }
       }
 
    function blackenElement(element) {
-      if (element.type == Element.REST)
+      if (element.type === Element.REST)
          element.color = "black"
-      else if (element.type == Element.CHORD) {
+      else if (element.type === Element.CHORD) {
          if (element.stem)
             element.stem.color = "black"
          if (element.hook)
@@ -51,7 +62,7 @@ MuseScore {
          if (element.stemSlash)
             element.stemSlash.color = "black"
          }
-      else if (element.type == Element.NOTE) {
+      else if (element.type === Element.NOTE) {
          element.color = "black"
          if (element.accidental)
             element.accidental.color = "black"
@@ -59,16 +70,16 @@ MuseScore {
             if (element.dots[i])
                element.dots[i].color = "black"
             }
-         }          
+         }
       else
-         console.log("Unknown element type: " + element.type)         
+         console.log("Unknown element type: " + element.type)
       }
 
    // Apply the given function to all chords and rests in selection
    // or, if nothing is selected, in the entire score
    function applyToChordsAndRestsInSelection(func) {
       var cursor = curScore.newCursor()
-      cursor.rewind(1)
+      cursor.rewind(Cursor.SELECTION_START)
       var startStaff
       var endStaff
       var endTick
@@ -80,12 +91,12 @@ MuseScore {
          }
       else {
          startStaff = cursor.staffIdx;
-         cursor.rewind(2)
-         if (cursor.tick == 0) {
+         cursor.rewind(Cursor.SELECTION_END)
+         if (cursor.tick === 0) {
             // this happens when the selection includes
             // the last measure of the score.
-            // rewind(2) goes behind the last segment (where
-            // there's none) and sets tick=0
+            // rewind(Cursor.SELECTION_END) goes behind the last segment
+            // (where there's none) and sets tick=0
             endTick = curScore.lastSegment.tick + 1
             }
          else
@@ -95,29 +106,29 @@ MuseScore {
       console.log(startStaff + " - " + endStaff + " - " + endTick)
       for (var staff = startStaff; staff <= endStaff; staff++) {
          for (var voice = 0; voice < 4; voice++) {
-            cursor.rewind(1) // sets voice to 0
+            cursor.rewind(Cursor.SELECTION_START) // sets voice to 0
             cursor.voice = voice //voice has to be set after goTo
             cursor.staffIdx = staff
             if (fullScore)
-               cursor.rewind(0) // if no selection, beginning of score
+               cursor.rewind(Cursor.SCORE_START) // if no selection, beginning of score
 
             while (cursor.segment && (fullScore || cursor.tick < endTick)) {
                if (cursor.element) {
-                  if (cursor.element.type == Element.REST)
+                  if (cursor.element.type === Element.REST)
                      func(cursor.element)
-                  else if (cursor.element.type == Element.CHORD) {
+                  else if (cursor.element.type === Element.CHORD) {
                      func(cursor.element)
                      var graceChords = cursor.element.graceNotes;
                      for (var i = 0; i < graceChords.length; i++) {
                         // iterate through all grace chords
                         func(graceChords[i])
-                        var notes = graceChords[i].notes
+                        var gnotes = graceChords[i].notes
                         for (var j = 0; j < graceChords[i].notes.length; j++)
-                           func(graceChords[i].notes[j])
+                           func(graceChords[i].gnotes[j])
                         }
                      var notes = cursor.element.notes
-                     for (var i = 0; i < notes.length; i++) {
-                        var note = notes[i]
+                     for (var k = 0; k < notes.length; k++) {
+                        var note = notes[k]
                         func(note)
                         }
                      }
@@ -131,10 +142,13 @@ MuseScore {
    onRun: {
       console.log("Hello, Black Notes")
       // check MuseScore version
-      if (mscoreMajorVersion == 3 && mscoreMinorVersion == 0 && mscoreUpdateVersion <= 1)
-         versionError.open()
-      else
-         applyToChordsAndRestsInSelection(blackenElement)            
-      Qt.quit();
+      if ((mscoreMajorVersion < 3) || ((mscoreMajorVersion == 3 && mscoreMinorVersion == 0 && mscoreUpdateVersion <= 1)))
+         versionError.open();
+      else {
+         curScore.startCmd();
+         applyToChordsAndRestsInSelection(blackenElement);
+         curScore.endCmd();
+         }
+      (typeof(quit) === 'undefined' ? Qt.quit : quit)()
       }
 }
diff --git a/color_notes.png b/color_notes.png
new file mode 100644
index 0000000..3535704
Binary files /dev/null and b/color_notes.png differ