Unexpected yet delightful little glyph

[Thoric]

Working in the LabVIEW Project tree today I suddenly saw that one of my virtual folders had an icon a little different from the rest....

After a little investigation I've learned that a Virtual Folder with the string "message" at the beginning causes a delightful little envelope glyph to appear over the drab grey folder icon.

I can't find any documentation to explain this, and I can't see a reason for any of my installed toolkits to do this, so I was wondering:

What other automatic glyphs might be overlaid for virtual folder names with particular content?

[Hooovahh]

I could not reproduce this in LabVIEW 2012.  Attatched is my test project and class.

[JÞB]

This might be a bit Greek.  Does this look familliar?

[crossrulz]

I'm not seeing this either.  And yes Jeff, I do recognize that

[tst]

My vague recollection is that this is done by one of the external project providers, possibly Symbio's GDS.

[Thoric]

I'm using LV2011, no Greek here, but I do have Symbio's GDS installed! It must be that!?

[Neil.Pate]

I think its something due to the Actor Framework.

Just re-read you are only using 2011, then I am sure it is GDS that is doing it. They also have the ability to change the glyphs for classes, which can be fun to mess around with