diff -r 803ce245f72f -r 67a4d207bace editors/TextViewer.py
--- a/editors/TextViewer.py	Tue Feb 15 16:10:19 2022 +0100
+++ b/editors/TextViewer.py	Fri Feb 18 14:51:58 2022 +0100
@@ -208,7 +208,7 @@
     def SetStyling(self, length, style):
         self.Editor.SetStyling(length, style)
 
-    def SetIndicatorCurrentFillRange(start, length, indic):
+    def SetIndicatorCurrentFillRange(self, start, length, indic):
         self.Editor.SetIndicatorCurrent(indic)
         self.Editor.IndicatorFillRange(start, length)