What does a red A on a window mean?

What does it mean when I see this red “A” on a window in the Xojo browser?

Screenshot 2023-06-05 at 12.12.21

The class has some Attributes defined:

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I don’t remember having something like this. I thought it was maybe an error message. Thanks. Doesn’t seem to be something to worry about.

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You should check to see what the attributes are and make sure they are correct. Some of them control IDE behaviors.