diff -ru 5.5.0/jEdit/org/gjt/sp/jedit/GUIUtilities.java 5.5.0/jEdit-patched/org/gjt/sp/jedit/GUIUtilities.java
--- 5.5.0/jEdit/org/gjt/sp/jedit/GUIUtilities.java	2018-12-01 15:51:30.320182833 +0100
+++ 5.5.0/jEdit-patched/org/gjt/sp/jedit/GUIUtilities.java	2018-12-01 15:51:49.028286932 +0100
@@ -1172,7 +1172,7 @@
 				return new Font("Monospaced", Font.PLAIN, 12);
 			}
 			else {
-				Font font2 = new Font("Lucida Sans Typewriter", Font.PLAIN, font1.getSize());
+				Font font2 = new Font("Isabelle DejaVu Sans Mono", Font.PLAIN, font1.getSize());
 				FontRenderContext frc = new FontRenderContext(null, true, false);
 				float scale =
 					font1.getLineMetrics("", frc).getHeight() / font2.getLineMetrics("", frc).getHeight();