tmux/Keyshort/Pane/Resize Pane

• Keyshort tmux tmux/Keyshort tmux/Keyshort/Pane
  • Resize Pane (Directional) #card
    • Shortcut:
      • <prefix> Alt-Up resize pane up
      • <prefix> Alt-Down resize pane down
      • <prefix> Alt-Left resize pane left
      • <prefix> Alt-Right resize pane right
    • Description: Adjusts the current pane size incrementally in the arrow direction.
    • My Notes
      • on macOS with Ghostty, <prefix> Alt-Left and <prefix> Alt-Right do not work
        • Ghostty's built-in defaults bind alt+arrow_left=esc:b and alt+arrow_right=esc:f (readline word-jump). These ship regardless of macos-option-as-alt and take priority over Option-as-Meta. tmux's M-Left/M-Right expect xterm sequences \033[1;3D/\033[1;3C — not ESC b/ESC f — so they never fire.
        • Alt-Up and Alt-Down still work because Ghostty has no built-in default for those directions, so they fall through as proper xterm modifier sequences (\033[1;3A/\033[1;3B).
        • The fix (overriding Ghostty's defaults with keybind = alt+arrow_left=esc:[1;3D) breaks word navigation at the terminal, which is more valuable. Accepted limitation on macOS.
        • see tmux/Q/Why doesn't prefix Alt-Left or Alt-Right resize the inner horizontal split in a nested tmux layout (outer top-bottom split and lower left-right split), while Alt-Up or Alt-Down still move the outer boundary?