diff --git a/Lab3/src/main/java/org/lumijiez/base/ArbitraryFile.java b/Lab3/src/main/java/org/lumijiez/base/ArbitraryFile.java
index 2c1cfc1..30bd32e 100644
--- a/Lab3/src/main/java/org/lumijiez/base/ArbitraryFile.java
+++ b/Lab3/src/main/java/org/lumijiez/base/ArbitraryFile.java
@@ -6,4 +6,9 @@ public class ArbitraryFile extends Document{
     public ArbitraryFile(Path path) {
         super(path);
     }
+
+    @Override
+    public String getInfo() {
+        return "ARBITRARY";
+    }
 }
diff --git a/Lab3/src/main/java/org/lumijiez/base/CodeFile.java b/Lab3/src/main/java/org/lumijiez/base/CodeFile.java
index 8d6a7b1..57e688c 100644
--- a/Lab3/src/main/java/org/lumijiez/base/CodeFile.java
+++ b/Lab3/src/main/java/org/lumijiez/base/CodeFile.java
@@ -6,4 +6,9 @@ public class CodeFile extends Document{
     public CodeFile(Path path) {
         super(path);
     }
+
+    @Override
+    public String getInfo() {
+        return "CODE";
+    }
 }
diff --git a/Lab3/src/main/java/org/lumijiez/base/Document.java b/Lab3/src/main/java/org/lumijiez/base/Document.java
index 395fb58..737fba2 100644
--- a/Lab3/src/main/java/org/lumijiez/base/Document.java
+++ b/Lab3/src/main/java/org/lumijiez/base/Document.java
@@ -56,4 +56,20 @@ public class Document extends File implements IDocument {
     public FileType getFileType() {
         return fileType;
     }
+
+    @Override
+    public long getFilesizeKB() {
+        try {
+            BasicFileAttributes fileAttributes = Files.readAttributes(Path.of(this.getPath()), BasicFileAttributes.class);
+            return fileAttributes.size() / 1024;
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return 0;
+    }
+
+    @Override
+    public String getInfo() {
+        return "Name: " + getName() + " Size: " + getFilesizeKB() + "Type: " + getFileType().getTypeName();
+    }
 }
diff --git a/Lab3/src/main/java/org/lumijiez/base/ImageFile.java b/Lab3/src/main/java/org/lumijiez/base/ImageFile.java
index e7f7055..54ebce8 100644
--- a/Lab3/src/main/java/org/lumijiez/base/ImageFile.java
+++ b/Lab3/src/main/java/org/lumijiez/base/ImageFile.java
@@ -1,9 +1,26 @@
 package org.lumijiez.base;
 
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.IOException;
 import java.nio.file.Path;
 
-public class ImageFile extends Document{
+public class ImageFile extends Document {
     public ImageFile(Path path) {
         super(path);
     }
+    @Override
+    public String getInfo() {
+        try {
+            BufferedImage image = ImageIO.read(this);
+            if (image != null) {
+                int width = image.getWidth();
+                int height = image.getHeight();
+                return "IMAGE " + width + "x" + height;
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
 }
diff --git a/Lab3/src/main/java/org/lumijiez/enums/FileType.java b/Lab3/src/main/java/org/lumijiez/enums/FileType.java
index 31b8be4..9dc612b 100644
--- a/Lab3/src/main/java/org/lumijiez/enums/FileType.java
+++ b/Lab3/src/main/java/org/lumijiez/enums/FileType.java
@@ -4,12 +4,18 @@ import java.util.ArrayList;
 import java.util.List;
 
 public enum FileType {
-    IMAGE("Image"), PLAINTEXT("Plaintext"), FILE("File"), CODE("Code"), NONE("None");
-    public List<String> typeExtensions;
-    public final String typeName;
+    IMAGE("Image", new ArrayList<>(List.of("jpg", "png"))),
+    PLAINTEXT("Plaintext", new ArrayList<>(List.of("txt", "csv"))),
+    FILE("File", new ArrayList<>(List.of("doc", "pdf", "zip"))),
+    CODE("Code", new ArrayList<>(List.of("java", "cpp", "py"))),
+    NONE("None", new ArrayList<>());
 
-    FileType(String typeName) {
+    private final List<String> typeExtensions;
+    private final String typeName;
+
+    FileType(String typeName, ArrayList<String> list) {
         this.typeName = typeName;
+        this.typeExtensions = list;
     }
 
     public static FileType getFileType(String extension) {
@@ -21,10 +27,9 @@ public enum FileType {
         return NONE;
     }
 
-    static {
-        IMAGE.typeExtensions = new ArrayList<>(List.of("jpg", "png"));
-        PLAINTEXT.typeExtensions = new ArrayList<>(List.of("txt", "csv"));
-        FILE.typeExtensions = new ArrayList<>(List.of("doc", "pdf", "zip"));
-        CODE.typeExtensions = new ArrayList<>(List.of("java", "cpp", "py"));
+    public String getTypeName() {
+        return typeName;
     }
+
+
 }
diff --git a/Lab3/src/main/java/org/lumijiez/gui/MainFrame.java b/Lab3/src/main/java/org/lumijiez/gui/MainFrame.java
index 8064db8..bde11c4 100644
--- a/Lab3/src/main/java/org/lumijiez/gui/MainFrame.java
+++ b/Lab3/src/main/java/org/lumijiez/gui/MainFrame.java
@@ -1,9 +1,9 @@
 package org.lumijiez.gui;
+import org.lumijiez.base.Document;
 import org.lumijiez.tracker.TrackerThread;
 
 import javax.swing.*;
 import java.awt.*;
-import java.io.File;
 import java.nio.file.Path;
 import java.util.*;
 
@@ -11,7 +11,7 @@ public class MainFrame extends JFrame {
     public static Path FOLDER_PATH;
     private final JScrollPane fileListScrollPane = new JScrollPane();
     private final JScrollPane fileInfoScrollPane = new JScrollPane();
-    private final JList<String> fileList = new JList<>();
+    private final JList<Document> fileList = new JList<>();
     private final JLabel pathLabel = new JLabel();
     private final JScrollPane mainScrollPane = new JScrollPane();
     private final JTextPane mainTextPane = new JTextPane();
@@ -24,7 +24,7 @@ public class MainFrame extends JFrame {
     private final JMenuItem pickFolder = new JMenuItem();
     private final JMenu settingsMenu = new JMenu();
     private final JMenuItem settings = new JMenuItem();
-    private final Map<File, byte[]> fileContents = new HashMap<>();
+    private final Map<Document, byte[]> fileContents = new HashMap<>();
     private TrackerThread tracker;
 
     public MainFrame() {
@@ -43,7 +43,7 @@ public class MainFrame extends JFrame {
         int returnVal = folderChooser.showOpenDialog(this);
         if (returnVal == JFileChooser.APPROVE_OPTION) {
             FOLDER_PATH = Path.of(folderChooser.getSelectedFile().getAbsolutePath());
-            tracker = new TrackerThread(mainTextPane, fileContents, fileList);
+            tracker = new TrackerThread(mainTextPane, fileContents, fileList, fileInfoTextPane);
             tracker.start();
         }
 
diff --git a/Lab3/src/main/java/org/lumijiez/interfaces/IDocument.java b/Lab3/src/main/java/org/lumijiez/interfaces/IDocument.java
index 399a7ea..e6232fd 100644
--- a/Lab3/src/main/java/org/lumijiez/interfaces/IDocument.java
+++ b/Lab3/src/main/java/org/lumijiez/interfaces/IDocument.java
@@ -5,8 +5,10 @@ import org.lumijiez.enums.FileType;
 import java.util.Date;
 
 public interface IDocument {
-    public String getExtension();
-    public Date getCreatedTime();
-    public Date getModificationTime();
-    public FileType getFileType();
+    String getExtension();
+    Date getCreatedTime();
+    Date getModificationTime();
+    FileType getFileType();
+    long getFilesizeKB();
+    String getInfo();
 }
diff --git a/Lab3/src/main/java/org/lumijiez/tracker/TrackerThread.java b/Lab3/src/main/java/org/lumijiez/tracker/TrackerThread.java
index b890c7e..fcf05b1 100644
--- a/Lab3/src/main/java/org/lumijiez/tracker/TrackerThread.java
+++ b/Lab3/src/main/java/org/lumijiez/tracker/TrackerThread.java
@@ -1,11 +1,14 @@
 package org.lumijiez.tracker;
 
+import org.lumijiez.base.Document;
 import org.lumijiez.gui.MainFrame;
 import org.lumijiez.enums.DiffType;
 import org.lumijiez.util.FileDiffer;
 import org.lumijiez.enums.StateType;
+import org.lumijiez.util.FileFactory;
 
 import javax.swing.*;
+import java.awt.*;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -13,37 +16,57 @@ import java.util.Map;
 
 public class TrackerThread extends Thread {
     private final JTextPane textPane;
-    private Map<File, byte[]> fileContents;
+    private Map<Document, byte[]> fileContents;
     private final Map<File, StateType> fileStates = new HashMap<>();
-    private final JList<String> fileList;
+    private final JList<Document> fileList;
+    private final JTextPane fileInfoTextPane;
 
-    public TrackerThread(JTextPane textPane, Map<File, byte[]> files, JList<String> fileList) {
+    public TrackerThread(JTextPane textPane, Map<Document, byte[]> files, JList<Document> fileList, JTextPane fileInfoTextPane) {
         this.textPane = textPane;
         this.fileContents = files;
         this.fileList = fileList;
+        this.fileInfoTextPane = fileInfoTextPane;
         init();
     }
 
     public void init() {
         System.out.println("Init called");
         fileContents = FileDiffer.crawlDirectory(MainFrame.FOLDER_PATH);
-        ArrayList<File> fList = new ArrayList<>(fileContents.keySet());
-        fileList.setModel(new AbstractListModel<>() {
-            public int getSize() {
-                return fList.size();
+        DefaultListModel<Document> listModel = new DefaultListModel<>();
+
+        for (File file : fileContents.keySet()) {
+            Document doc = FileFactory.getDocument(file.toPath());
+            listModel.addElement(doc);
+        }
+
+        fileList.setModel(listModel);
+        fileList.setCellRenderer(new DefaultListCellRenderer() {
+            @Override
+            public Component getListCellRendererComponent(JList<?> list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
+                if (value instanceof Document) {
+                    value = ((Document) value).getName();
+                }
+                return super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
             }
-            public String getElementAt(int i) {
-                return fList.get(i).getName();
+        });
+
+        fileList.addListSelectionListener(e -> {
+            if (!e.getValueIsAdjusting()) {
+                Document selectedDocument = fileList.getSelectedValue();
+                if (selectedDocument != null) {
+                    fileInfoTextPane.setText(selectedDocument.getInfo());
+                }
             }
         });
     }
 
+
     public void reset() {
         fileStates.clear();
     }
 
     public void checkDirectory() {
-        Map<DiffType, ArrayList<File>> result = FileDiffer.diff(fileContents, FileDiffer.crawlDirectory(MainFrame.FOLDER_PATH));
+        Map<DiffType, ArrayList<Document>> result = FileDiffer.diff(fileContents, FileDiffer.crawlDirectory(MainFrame.FOLDER_PATH));
 
         StringBuilder toShow = new StringBuilder();
 
diff --git a/Lab3/src/main/java/org/lumijiez/util/FileDiffer.java b/Lab3/src/main/java/org/lumijiez/util/FileDiffer.java
index 4d6e515..60e3844 100644
--- a/Lab3/src/main/java/org/lumijiez/util/FileDiffer.java
+++ b/Lab3/src/main/java/org/lumijiez/util/FileDiffer.java
@@ -1,8 +1,8 @@
 package org.lumijiez.util;
 
+import org.lumijiez.base.Document;
 import org.lumijiez.enums.DiffType;
 
-import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -13,13 +13,13 @@ import java.util.Map;
 import java.util.stream.Stream;
 
 public class FileDiffer {
-    public static Map<DiffType, ArrayList<File>> diff(Map<File, byte[]> oldFiles, Map<File, byte[]> newFiles) {
-        Map<DiffType, ArrayList<File>> result = Map.of(
+    public static Map<DiffType, ArrayList<Document>> diff(Map<Document, byte[]> oldFiles, Map<Document, byte[]> newFiles) {
+        Map<DiffType, ArrayList<Document>> result = Map.of(
                         DiffType.CREATE, new ArrayList<>(),
                         DiffType.DELETE, new ArrayList<>(),
                         DiffType.MODIFY, new ArrayList<>());
 
-        for (File file : oldFiles.keySet()) {
+        for (Document file : oldFiles.keySet()) {
             if (newFiles.get(file) != null) {
                 if (Arrays.compare(oldFiles.get(file), newFiles.get(file)) != 0) {
                     result.get(DiffType.MODIFY).add(file);
@@ -29,7 +29,7 @@ public class FileDiffer {
             }
         }
 
-        for (File file : newFiles.keySet()) {
+        for (Document file : newFiles.keySet()) {
             if (oldFiles.get(file) == null) {
                 result.get(DiffType.CREATE).add(file);
             }
@@ -38,13 +38,14 @@ public class FileDiffer {
         return result;
     }
 
-    public static Map<File, byte[]> crawlDirectory(Path path) {
-        Map<File, byte[]> newFileContents = new HashMap<>();
+    public static Map<Document, byte[]> crawlDirectory(Path path) {
+        Map<Document, byte[]> newFileContents = new HashMap<>();
         try (Stream<Path> paths = Files.walk(path)) {
             paths.forEach(p -> {
-                if (Files.isRegularFile(p)) {
+                Document doc = new Document(p);
+                if (Files.isRegularFile(doc.toPath())) {
                     try {
-                        newFileContents.put(p.toFile(), Files.readAllBytes(p));
+                        newFileContents.put(doc, Files.readAllBytes(doc.toPath()));
                     } catch (IOException e) {
                         throw new RuntimeException(e);
                     }
diff --git a/Lab3/src/main/java/org/lumijiez/util/FileFactory.java b/Lab3/src/main/java/org/lumijiez/util/FileFactory.java
new file mode 100644
index 0000000..c7d0294
--- /dev/null
+++ b/Lab3/src/main/java/org/lumijiez/util/FileFactory.java
@@ -0,0 +1,17 @@
+package org.lumijiez.util;
+
+import org.lumijiez.base.*;
+import org.lumijiez.enums.FileType;
+
+import java.nio.file.Path;
+
+public class FileFactory {
+    public static Document getDocument(Path path) {
+        Document doc = new Document(path);
+        if (doc.getFileType() == FileType.PLAINTEXT) return new TextFile(path);
+        if (doc.getFileType() == FileType.IMAGE) return new ImageFile(path);
+        if (doc.getFileType() == FileType.FILE) return new ArbitraryFile(path);
+        if (doc.getFileType() == FileType.CODE) return new CodeFile(path);
+        return doc;
+    }
+}