Test::TAP::Model::Visual - A result set that will create ::Visual children, and knows it's color.
It inherits from Test::TAP::Model::Colorful. That's about it.
A nice little textual summary about the result of the entire test run.
A short descriptive string used to distinguish this model from others in the various consolidated reports.
An overridden version of get_test_files which sets
desc_stringon the files based on the one from $self.