<?xml version="1.0" encoding="UTF-8"?><ui version="4.0"><class>MainConfigurationWidgetBase</class><widget class="QWidget" name="MainConfigurationWidgetBase"><property name="geometry"><rect><x>0</x><y>0</y><width>500</width><height>500</height></rect></property><layout class="QVBoxLayout" name="verticalLayout"><item><widget class="QTabWidget" name="tabs"><property name="currentIndex"><number>-1</number></property></widget></item></layout></widget><resources/><connections/><slots><signal>changed()</signal></slots></ui>