Both captures below are real iTerm2 sessions running the demo — the same binary renders at pixel resolution where the terminal speaks the kitty graphics protocol, and as ASCII cells everywhere else.
kitty graphics — coral-gfx
Two chemicals diffuse and react across the grid; mapping the inhibitor through a palette reveals patterns that grow and divide forever. c cycles presets (coral, mitosis, spots, maze, waves) that completely change the morphology.
coral — kitty pixel mode
ASCII cells — coral
The same chemical field as a glyph-and-colour ramp — lower resolution, same restless life.
coral — ASCII cell mode
Controls
Key
Action
space
reseed
mouse click
seed at the pointer
a
pause
c
cycle preset / palette
+ / -
sim speed
q / Esc
quit
Tuning env vars use the CORAL_* prefix — e.g. CORAL_MAXDIM=1024 for sharper frames, CORAL_CELLS=1 to force cell rendering even on kitty terminals. See the overview for the full tuning table.
