Description:
I'm encountering a rendering issue with the tmux window indicator when using the catppuccin theme in combination with the FiraCode Nerd font on Windows Terminal within WSL. Specifically, there seems to be a disconnect between the separator and the window number, resulting in a visual artifact.
Steps I've Taken:
- Set up Windows Terminal with WSL.
- Applied the catppuccin theme for tmux.
- Set the font to "FiraCode Nerd".
- Opened multiple tmux windows.
Expected Behavior:
The tmux window indicator should render correctly with no visual artifacts, and there should be no disconnect between the separator and the window number.
Actual Behavior:
There is a noticeable disconnect between the separator and the window number, resulting in a visual artifact.
Additional Information:
- This issue appeared suddenly without any changes to my configuration.
- I've tried troubleshooting by adjusting font sizes, checking for updates, and reviewing configuration settings, but the issue persists.
- Changing fonts did not resolve the issue, suggesting it may not be specific to the FiraCode Nerd font.
- I've attached screenshots for reference.
Environment:
- Operating System: Windows with WSL
- Terminal Emulator: Windows Terminal
- tmux Version: Tmux 3.4
- catppuccin Version: Updated to the last available using tpm
- Font: FiraCode Nerd
Screenshots:
How can I identify the cause of this issue and any potential solutions?


