-\twocolitem{\bf{Add(bitmap, mask=wxNullBitmap)}}{}
-\twocolitem{\bf{AddWithColourMask(bitmap, colour)}}{}
-\twocolitem{\bf{AddIcon(icon)}}{}
+\twocolitem{{\bf Add(bitmap, mask=wxNullBitmap)}}{}
+\twocolitem{{\bf AddWithColourMask(bitmap, colour)}}{}
+\twocolitem{{\bf AddIcon(icon)}}{}