nicer icons

src/main/java/cz/kamma/kfmanager/ui/MainWindow.java

@@ -415,8 +415,7 @@ public class MainWindow extends JFrame {
         
         // Refresh button
         JButton btnRefresh = new JButton("↻");
-        btnRefresh.setToolTipText("Refresh active panel");
+        setupMainToolbarButton(btnRefresh, "Refresh active panel", new Color(140, 190, 140));
-        btnRefresh.setFocusable(false);
         btnRefresh.addActionListener(e -> {
             if (activePanel != null && activePanel.getCurrentDirectory() != null) {
                 activePanel.refresh(true);
@@ -427,8 +426,7 @@ public class MainWindow extends JFrame {
         
         // Button for BRIEF mode
         JButton btnBrief = new JButton("☰");
-    btnBrief.setToolTipText("Brief mode - multiple columns (Ctrl+F1)");
+        setupMainToolbarButton(btnBrief, "Brief mode - multiple columns (Ctrl+F1)", new Color(230, 180, 130));
-        btnBrief.setFocusable(false);
         btnBrief.addActionListener(e -> {
             if (activePanel != null) {
                 activePanel.setViewMode(ViewMode.BRIEF);
@@ -437,8 +435,7 @@ public class MainWindow extends JFrame {
         
         // Button for FULL mode
         JButton btnFull = new JButton("▤");
-    btnFull.setToolTipText("Full mode - full information (Ctrl+F2)");
+        setupMainToolbarButton(btnFull, "Full mode - full information (Ctrl+F2)", new Color(140, 170, 220));
-        btnFull.setFocusable(false);
         btnFull.addActionListener(e -> {
             if (activePanel != null) {
                 activePanel.setViewMode(ViewMode.FULL);
@@ -452,15 +449,13 @@ public class MainWindow extends JFrame {
 
         // Search button
         JButton btnSearch = new JButton("🔍");
-        btnSearch.setToolTipText("Search files (Alt+F7)");
+        setupMainToolbarButton(btnSearch, "Search files (Alt+F7)", new Color(200, 160, 200));
-        btnSearch.setFocusable(false);
         btnSearch.addActionListener(e -> showSearchDialog());
         toolBar.add(btnSearch);
 
         // Sync button
         JButton btnSync = new JButton("⚖");
-        btnSync.setToolTipText("Compare directories");
+        setupMainToolbarButton(btnSync, "Compare directories", new Color(150, 200, 200));
-        btnSync.setFocusable(false);
         btnSync.addActionListener(e -> showSyncDialog());
         toolBar.add(btnSync);
 
@@ -477,9 +472,7 @@ public class MainWindow extends JFrame {
 
         for (AppConfig.ToolbarShortcut s : shortcuts) {
             JButton btn = new JButton();
-            btn.setPreferredSize(new Dimension(btnSize, btnSize));
+            setupShortcutButton(btn, s.label + " (" + s.command + ")");
-            btn.setMinimumSize(new Dimension(btnSize, btnSize));
-            btn.setMaximumSize(new Dimension(btnSize, btnSize));
             
             boolean hasIcon = false;
             boolean isDirectory = false;
@@ -521,13 +514,12 @@ public class MainWindow extends JFrame {
                 } catch (Exception ignore) {}
             }
             
-            // If no icon found, use the label text, otherwise use label as tooltip
+            // If no icon found, use the label text
             if (!hasIcon) {
                 btn.setText(s.label);
+                btn.setFont(btn.getFont().deriveFont(Font.BOLD, 12f));
             }
-            btn.setToolTipText(s.label + " (" + s.command + ")");
             
-            btn.setFocusable(false);
             btn.addActionListener(e -> {
                 // If command is a directory that exists, change active panel directory
                 File dir = new File(s.command);
@@ -593,6 +585,70 @@ public class MainWindow extends JFrame {
         toolBar.repaint();
     }
 
+    private void setupMainToolbarButton(JButton btn, String tooltip, Color color) {
+        int btnSize = config != null ? config.getToolbarButtonSize() : 35;
+        if (btnSize < 35) btnSize = 35;
+        
+        btn.setPreferredSize(new Dimension(btnSize, btnSize));
+        btn.setMinimumSize(new Dimension(btnSize, btnSize));
+        btn.setMaximumSize(new Dimension(btnSize, btnSize));
+        btn.setToolTipText(tooltip);
+        btn.setFont(btn.getFont().deriveFont(Font.BOLD, 18f));
+        btn.setFocusPainted(false);
+        
+        Color bg = config != null ? config.getBackgroundColor() : Color.WHITE;
+        boolean dark = isDark(bg);
+        
+        Color foregroundColor = dark ? color.brighter() : color.darker();
+        btn.setForeground(foregroundColor);
+        
+        btn.setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3));
+
+        btn.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseEntered(MouseEvent e) {
+                btn.setBackground(color);
+                btn.setForeground(isDark(color) ? Color.WHITE : Color.BLACK);
+                btn.setOpaque(true);
+            }
+            @Override
+            public void mouseExited(MouseEvent e) {
+                btn.setBackground(null);
+                btn.setForeground(foregroundColor);
+                btn.setOpaque(false);
+            }
+        });
+        btn.setContentAreaFilled(false);
+    }
+
+    private void setupShortcutButton(JButton btn, String tooltip) {
+        int btnSize = config != null ? config.getToolbarButtonSize() : 35;
+        btn.setPreferredSize(new Dimension(btnSize, btnSize));
+        btn.setMinimumSize(new Dimension(btnSize, btnSize));
+        btn.setMaximumSize(new Dimension(btnSize, btnSize));
+        btn.setToolTipText(tooltip);
+        btn.setFocusable(false);
+        btn.setFocusPainted(false);
+        btn.setContentAreaFilled(false);
+        
+        Color bg = config != null ? config.getBackgroundColor() : Color.WHITE;
+        boolean dark = isDark(bg);
+
+        btn.setBorder(BorderFactory.createEmptyBorder(3, 3, 3, 3));
+
+        btn.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseEntered(MouseEvent e) {
+                btn.setBackground(dark ? new Color(80, 80, 80) : new Color(230, 230, 230));
+                btn.setOpaque(true);
+            }
+            @Override
+            public void mouseExited(MouseEvent e) {
+                btn.setOpaque(false);
+            }
+        });
+    }
+    
     private void showAddToolbarShortcutDialog(File file) {
         showToolbarShortcutEditor(null, file);
     }

src/main/java/cz/kamma/kfmanager/ui/SyncDirectoriesDialog.java

@@ -102,21 +102,39 @@ public class SyncDirectoriesDialog extends JDialog {
         optionsPanel.add(Box.createHorizontalStrut(20));
         optionsPanel.add(new JLabel("Show:"));
         
-        showLeftOnlyBtn = new JToggleButton("➡");
+        showLeftOnlyBtn = new JToggleButton("▶");
         showEqualBtn = new JToggleButton("=");
         showDiffBtn = new JToggleButton("≠");
-        showRightOnlyBtn = new JToggleButton("⬅");
+        showRightOnlyBtn = new JToggleButton("◀");
+
+        Dimension btnSize = new Dimension(45, 30);
+        setupToolbarButton(showLeftOnlyBtn, btnSize, "Show files only on left or newer on left", new Color(0, 130, 0));
+        setupToolbarButton(showEqualBtn, btnSize, "Show equal files", Color.GRAY);
+        setupToolbarButton(showDiffBtn, btnSize, "Show different files", Color.RED);
+        setupToolbarButton(showRightOnlyBtn, btnSize, "Show files only on right or newer on right", Color.BLUE);
         
         showLeftOnlyBtn.setSelected(config.getSyncShowLeftOnly());
         showEqualBtn.setSelected(config.getSyncShowEqual());
         showDiffBtn.setSelected(config.getSyncShowDiff());
         showRightOnlyBtn.setSelected(config.getSyncShowRightOnly());
 
+        // Update background/foreground for buttons based on initial selection
+        updateButtonSelection(showLeftOnlyBtn, new Color(0, 130, 0));
+        updateButtonSelection(showEqualBtn, Color.GRAY);
+        updateButtonSelection(showDiffBtn, Color.RED);
+        updateButtonSelection(showRightOnlyBtn, Color.BLUE);
+        
         java.awt.event.ActionListener filterAl = e -> {
             config.setSyncShowLeftOnly(showLeftOnlyBtn.isSelected());
             config.setSyncShowEqual(showEqualBtn.isSelected());
             config.setSyncShowDiff(showDiffBtn.isSelected());
             config.setSyncShowRightOnly(showRightOnlyBtn.isSelected());
+            
+            updateButtonSelection(showLeftOnlyBtn, new Color(0, 130, 0));
+            updateButtonSelection(showEqualBtn, Color.GRAY);
+            updateButtonSelection(showDiffBtn, Color.RED);
+            updateButtonSelection(showRightOnlyBtn, Color.BLUE);
+            
             applyFilters();
         };
         showLeftOnlyBtn.addActionListener(filterAl);
@@ -140,6 +158,12 @@ public class SyncDirectoriesDialog extends JDialog {
             config.setSyncShowEqual(true);
             config.setSyncShowDiff(true);
             config.setSyncShowRightOnly(false);
+            
+            updateButtonSelection(showLeftOnlyBtn, new Color(0, 130, 0));
+            updateButtonSelection(showEqualBtn, Color.GRAY);
+            updateButtonSelection(showDiffBtn, Color.RED);
+            updateButtonSelection(showRightOnlyBtn, Color.BLUE);
+            
             applyFilters();
         });
         JButton singlesBtn = new JButton("singles");
@@ -152,6 +176,12 @@ public class SyncDirectoriesDialog extends JDialog {
             config.setSyncShowEqual(false);
             config.setSyncShowDiff(false);
             config.setSyncShowRightOnly(true);
+            
+            updateButtonSelection(showLeftOnlyBtn, new Color(0, 130, 0));
+            updateButtonSelection(showEqualBtn, Color.GRAY);
+            updateButtonSelection(showDiffBtn, Color.RED);
+            updateButtonSelection(showRightOnlyBtn, Color.BLUE);
+            
             applyFilters();
         });
         optionsPanel.add(duplicatesBtn);
@@ -195,6 +225,30 @@ public class SyncDirectoriesDialog extends JDialog {
         add(bottomPanel, BorderLayout.SOUTH);
     }
 
+    private void setupToolbarButton(JToggleButton btn, Dimension size, String tooltip, Color color) {
+        btn.setPreferredSize(size);
+        btn.setMinimumSize(size);
+        btn.setMaximumSize(size);
+        btn.setToolTipText(tooltip);
+        btn.setFont(btn.getFont().deriveFont(Font.BOLD, 16f));
+        btn.setFocusPainted(false);
+        btn.setBorder(BorderFactory.createCompoundBorder(
+            BorderFactory.createLineBorder(color.darker(), 1),
+            BorderFactory.createEmptyBorder(2, 5, 2, 5)
+        ));
+        btn.setForeground(color);
+    }
+
+    private void updateButtonSelection(JToggleButton btn, Color color) {
+        if (btn.isSelected()) {
+            btn.setBackground(color);
+            btn.setForeground(isDark(color) ? Color.WHITE : Color.BLACK);
+        } else {
+            btn.setBackground(null);
+            btn.setForeground(color);
+        }
+    }
+
     private void saveSettings() {
         if (config != null) {
             config.saveSyncDialogState(this);
@@ -219,14 +273,16 @@ public class SyncDirectoriesDialog extends JDialog {
         Color selColor = config != null ? config.getSelectionColor() : null;
 
         for (Component c : container.getComponents()) {
-            if (c instanceof JPanel || c instanceof JScrollPane || c instanceof JViewport || c instanceof JTabbedPane || c instanceof JButton || c instanceof JComboBox || c instanceof JTable) {
+            if (c instanceof JPanel || c instanceof JScrollPane || c instanceof JViewport || c instanceof JTabbedPane || c instanceof AbstractButton || c instanceof JComboBox || c instanceof JTable) {
                 if (!(c instanceof JToggleButton)) {
                     c.setBackground(bg);
                 }
             }
-            if (c instanceof JLabel || c instanceof JCheckBox || c instanceof JRadioButton || c instanceof JButton) {
+            if (c instanceof JLabel || c instanceof JCheckBox || c instanceof JRadioButton || c instanceof AbstractButton) {
+                if (!(c instanceof JToggleButton)) {
                     c.setForeground(dark ? Color.WHITE : Color.BLACK);
                 }
+            }
             if (c instanceof javax.swing.text.JTextComponent) {
                 javax.swing.text.JTextComponent tc = (javax.swing.text.JTextComponent) c;
                 tc.setBackground(bg);