Add a red star after the label for required fields.

modules/plugin_dbui/converter.py

@@ -117,6 +117,7 @@ def _to_field(field, linkedcombo=True, **kwargs):
         
     elif field.notnull:
         cfg["allowBlank"] = False
+        cfg["afterLabelTextTpl"] = '<span style="color:red"> * </span>'
 
     # read only field
     if field.readable and not field.writable: