variáveis e método p/ adicionar widgets no vlayout

aula202-calculadora/main.py

@@ -1,16 +1,21 @@
 import sys
 
 from main_window import MainWindow
-from PySide6.QtWidgets import QApplication, QLabel
+from PySide6.QtGui import QIcon
+from PySide6.QtWidgets import QApplication
+from variables import WINDOW_ICON_PATH
 
 if __name__ == '__main__':
+    # Cria a aplicação
     app = QApplication(sys.argv)
     window = MainWindow()
 
-    label1 = QLabel('O meu texto')
-    label1.setStyleSheet('font-size: 150px;')
-    window.v_layout.addWidget(label1)
-    window.adjustFixedSize()
+    # Define o ícone
+    icon = QIcon(str(WINDOW_ICON_PATH))
+    window.setWindowIcon(icon)
+    app.setWindowIcon(icon)
 
+    # Executa tudo
+    window.adjustFixedSize()
     window.show()
     app.exec()