-Q2.F.5- create a widget with an upper case name?

From: -II-  Tk Questions and Answers - How can I:

A2.F.5. During a recent revision of Tk, things were changed so that names
beginning with a capital letter are reserved for class names.  Specific
instances of widgets must begin with a lower case letter.  This enables
X11 resource definitions to distinguish between a class and instance.

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