qt-creator/share/qtcreator/templates/wizards

Qt Creator custom wizard are located in this directory.

The subdirectories 'helloworld' and 'listmodel' are provided as examples.
To see how they work in Qt Creator, rename the 'wizard_sample.xml' files
to 'wizard.xml'.

The command line option -customwizard-verbose can be used to obtain
verbose information while loading the custom wizards.