1. import sys
2. import PySide6
3.  
4. from PySide6 import QtGui, QtWidgets
5. from PySide6.QtCore import Qt
6. from PySide6.QtWidgets import QApplication, QHBoxLayout, QPushButton, QVBoxLayout, QWidget, QLabel
7.  
8. app = QApplication(sys.argv)
9.  
10. win = QWidget()
11. win.setWindowTitle("Hello World")
12. win.setGeometry(100, 100, 280, 80)
13. win.move(int(1920/2), int(1080/2))
14.  
15. lay = QVBoxLayout()
16. layV = QVBoxLayout()
17. tlb = QWidget()
18. lst = QWidget()
19.  
20. layH = QHBoxLayout()
21. layH.addWidget(QPushButton("Left"))
22. layH.addWidget(QPushButton("Center"), 1)
23. layH.addWidget(QPushButton("Right"),  2)
24. tlb.setLayout(layH)
25.  
26. p = tlb.palette()
27. p.setColor(tlb.backgroundRole(), Qt.red)
28. tlb.setPalette(p)
29.  
30. pal = win.palette()
31. pal.setColor(win.backgroundRole(), Qt.red)
32. lst.setAutoFillBackground(True)
33. lst.setPalette(pal)
34.  
35. lbl1 = QLabel("<h1>Line 2</h1>")
36. lbl2 = QLabel("<h2>Line 3</h2>")
37. lbl3 = QLabel("<h3>Line IV</h3>")
38. layV.addWidget(lbl1)
39. layV.addWidget(lbl2)
40. layV.addWidget(lbl3)
41. lst.setLayout(layV)
42.  
43. lay.addWidget(tlb)
44. lay.addWidget(lst)
45. win.setLayout(lay)
46.  
47. lbl0 = QLabel("<h1>Q World</h1>", parent=win)
48. lbl0.move(int(50), int(10))
49.  
50. win.show()
51. sys.exit(app.exec&#40;&#41;)
52.