ghostty/TODO.md

Performance:

• for scrollback, investigate using segmented list for sufficiently large scrollback scenarios.
• Loading fonts on startups should probably happen in multiple threads
• deleteLines is very, very slow which makes scroll region benchmarks terrible

Correctness:

• test wrap against wraptest: https://github.com/mattiase/wraptest
  • automate this in some way
• Charsets: UTF-8 vs. ASCII mode
  • we only support UTF-8 input right now
  • need fallback glyphs if they're not supported
  • can effect a crash using vttest menu 3 10 since it tries to parse ASCII as UTF-8.

Improvements:

• scrollback: configurable
• selection on top/bottom should scroll up/down (while extending selection)
• shift-click and drag to continue selection

Mac:

• Preferences window

Major Features:

• Reloadable configuration
• Bell
• Sixels: https://saitoha.github.io/libsixel/
• Kitty keyboard protocol: https://sw.kovidgoyal.net/kitty/keyboard-protocol/
• Kitty graphics protocol: https://sw.kovidgoyal.net/kitty/graphics-protocol/
• Colored underlines: https://sw.kovidgoyal.net/kitty/underlines/