Skipper already works and displays PHP attribute names and not SQL column names. As you can see on following screenshot, the "name" is used to define PHP attribute name and "column" or "column_definition" is used to define SQL name and SQL definition:

All ORM / PHP names are imported from schema files (XML/YML/PHP Annotations) as same as "column" definitions are imported from correspond fields.
In case you're seeing SQL names in the model, it means that you have incorrectly defined your own model and Skipper only visualize your data.