Extract text alignment into separate method.

core/src/main/java/com/github/weisj/darklaf/ui/text/DarkTextFieldUI.java

@@ -40,6 +40,7 @@ import com.github.weisj.darklaf.listener.MouseMovementListener;
 import com.github.weisj.darklaf.listener.PopupMenuAdapter;
 import com.github.weisj.darklaf.ui.text.bridge.DarkTextFieldUIBridge;
 import com.github.weisj.darklaf.util.DarkUIUtil;
+import com.github.weisj.darklaf.util.FontUtil;
 import com.github.weisj.darklaf.util.PropertyUtil;
 
 /** @author Jannis Weis */
@@ -142,11 +143,9 @@ public class DarkTextFieldUI extends DarkTextFieldUIBridge implements PropertyCh
         Rectangle rect = super.getVisibleEditorRect();
         if (rect != null && shrinkHeight) {
             FontMetrics fm = SwingUtilities2.getFontMetrics(editor, editor.getFont());
-            int asc = fm.getMaxAscent();
             Insets ins = editor.getInsets();
             int height = editor.getHeight() - ins.top - ins.bottom;
-            rect.y = ins.top + (height - asc) / 2;
-            rect.y -= fm.getDescent() / 2;
+            rect.y = ins.top + FontUtil.getCenteredFontPosition(height, fm);
             rect.height = fm.getHeight();
         }
         adjustTextRect(getComponent(), rect);

utils/src/main/java/com/github/weisj/darklaf/util/FontUtil.java

@@ -23,8 +23,10 @@ package com.github.weisj.darklaf.util;
 
 import java.awt.*;
 
+import javax.swing.*;
 import javax.swing.text.StyleContext;
 
+
 public class FontUtil {
 
     public static Font createFont(final String family, final int style, final int size) {
@@ -33,6 +35,13 @@ public class FontUtil {
         return new NonUIResourceFont(StyleContext.getDefaultStyleContext().getFont(family, style, size));
     }
 
+    public static int getCenteredFontPosition(final int height, final FontMetrics fm) {
+        int asc = fm.getMaxAscent();
+        int y = (height - asc) / 2;
+        y -= fm.getDescent() / 2;
+        return y;
+    }
+
     public static class NonUIResourceFont extends Font {
 
         public NonUIResourceFont(final Font font) {