**Describe the bug** Although I have selected Tool GUI, clicking on the output waveform opens gtkwave. **To Reproduce** N/A **Code** N/A **Please complete the following information:** - OS: Windows 10 22H2 - VSCode version: 1.105.1 **Screenshots** <img width="1864" height="699" alt="Image" src="https://github.com/user-attachments/assets/beb1c5cc-af10-4266-85d2-97fedcfe0b2e" /> **Additional context** N/A