Image preview works partialy through ghostty + tmux

[timsofteng]

Checklist

• I have read through the manual page (man fzf)
• I have searched through the existing issues
• For bug reports, I have checked if the bug is reproducible in the latest version of fzf

Output of fzf --version

0.68.0 (Homebrew)

OS

• Linux
• macOS
• Windows
• Etc.

Shell

• bash
• zsh
• fish

Problem / Steps to reproduce

Terminal
Ghostty
❯ ghostty --version
Ghostty 1.2.3

Version

• version: 1.2.3
• channel: stable
  Build Config
• Zig version : 0.14.1
• build mode : builtin.OptimizeMode.ReleaseFast
• app runtime : apprt.Runtime.none
• font engine : font.main.Backend.coretext
• renderer : renderer.generic.Renderer(renderer.Metal)
• libxev : kqueue

❯ chafa --version
Chafa version 1.18.1

tmux

run

fzf --preview="chafa -f kitty -s \${FZF_PREVIEW_COLUMNS}x\${FZF_PREVIEW_LINES} {}"

NOTE
There is whole image outside of tmux.