diff --git a/scanslicer/main.py b/scanslicer/main.py
index db0408c..0fbb9b6 100644
--- a/scanslicer/main.py
+++ b/scanslicer/main.py
@@ -129,3 +129,20 @@ def apply_dark_theme_if_requested(app):
     palette.setColor(QPalette.Highlight, QColor(42, 130, 218))
     palette.setColor(QPalette.HighlightedText, QColor(255, 255, 255))
     app.setPalette(palette)
+
+
+# apply_global_text_size_offset: function definition for ScanSlicer behavior.
+def apply_global_text_size_offset(app, pixel_offset=2):
+    font = app.font()
+    info = QFontInfo(font)
+    pixel_size = info.pixelSize()
+
+    if pixel_size > 0:
+        font.setPixelSize(pixel_size + pixel_offset)
+    else:
+        point_size = info.pointSizeF()
+        if point_size <= 0:
+            point_size = 10.0
+        font.setPointSizeF(point_size + (pixel_offset * 0.75))
+
+    app.setFont(font)