Turning on block-group indicators obscures characters that they intersect:
![attachment.php?attachmentid=41815](http://forums.parallax.com/attachment.php?attachmentid=41815)
![attachment.php?attachmentid=41816](http://forums.parallax.com/attachment.php?attachmentid=41816)
It seems like characters should be drawn on top of the indicators, not vice versa.
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OS-X: because making Unix user-friendly was easier than debugging Windows