Lolcat does not work, like it should. The colors are way of. And everything is blinking. -- Homebrew

[Fren507]

lolcat displays broken/blinking output on macOS Sequoia (15.5)

I’ve installed lolcat via Homebrew (/opt/homebrew/bin/lolcat) on macOS Sequoia 15.5 (24F74), using the default macOS Terminal with zsh.

However, the output is blinking aggressively and color rendering appears broken — even with basic input like --help or echo "Hello".

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What I tried

• Reinstalled via Homebrew:

  brew uninstall lolcat && brew install lolcat

• Tried multiple terminals and different locales.

• Tested with and without piping (e.g. cat file.txt | lolcat\ and echo).

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Still not working

Here’s a screenshot showing the blinking / color issue:

Bildschirmaufnahme.2025-06-26.um.11.29.06.mov

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System Info

lolcat --version
echo $TERM
locale

lolcat 100.0.1 (c)2011 moe@busyloop.net
xterm-256color
LANG="de_DE.UTF-8"
LC_COLLATE="de_DE.UTF-8"
LC_CTYPE="de_DE.UTF-8"
LC_MESSAGES="de_DE.UTF-8"
LC_MONETARY="de_DE.UTF-8"
LC_NUMERIC="de_DE.UTF-8"
LC_TIME="de_DE.UTF-8"
LC_ALL=

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Is anyone else experiencing this on Sequoia?
Would appreciate any insights or workarounds