Raw ANSI escape sequences printed literally: WezTerm + WSL2 (Ubuntu) + Zellij + Nushell (Homebrew)

[arisc1994]

Environment

Component	Value
OS	Windows 11 + WSL2 Ubuntu
Terminal	WezTerm (Windows host)
Multiplexer	Zellij (installed via Homebrew in WSL)
Shell	Nushell (installed via Homebrew in WSL)
Homebrew	/home/linuxbrew/.linuxbrew

zellij --version   # zellij 0.44.3
nu --version       # 0.114.0

Problem

When launching the stack WezTerm → WSL2 Ubuntu → Nushell → Zellij,
ANSI/color escape sequences are printed as raw literal text instead of
being rendered as colors.

Example of what appears on screen:

/5f5f\000/ffff/87875f5f/8787/afaf0:5f5f/ffff/d7d75f105;rgb:8787/8787/ffffrg
b:8787/d7d7/87878787/ffff/ffff/5f5f/87877/ffff87169;rgb:d7d7/5f5f/afafrgb...

Steps to Reproduce

1. Open WezTerm on Windows with term = "wezterm" in wezterm.lua
2. WSL2 Ubuntu launches automatically
3. Nushell starts via Homebrew (/home/linuxbrew/.linuxbrew/bin/nu)
4. Zellij auto-starts from env.nu
5. Raw escape sequences are visible immediately at the prompt

Expected Behavior

Colors and styles render correctly — no raw escape codes visible.

Actual Behavior

Escape sequences like rgb:8787/d7d7/8787 and \5f5f/ffff are printed
as literal text.

Configuration

wezterm.lua

-- Terminal & Colors
-- WSL doesn't have wezterm terminfo, so we use xterm-256color there
-- See: https://github.com/Gentleman-Programming/Gentleman.Dots/issues/117
if wezterm.target_triple:find("windows") then
  config.term = "xterm-256color"
else
  config.term = "wezterm"
end

Diagnostics

# Inside Zellij + Nushell — paste your output:
$env.TERM        # xterm-256color
$env.COLORTERM   # truecolor
infocmp wezterm  # exists? Yes via Reconstructed via infocmp from file: /home/linuxbrew/.linuxbrew/Cellar/ncurses/6.6/share/terminfo/./w/wezterm
wezterm|Wez's Terminal Emulator

Issues Related

• Fish shell fails to start in WSL when TERM=wezterm (missing or unsuitable terminal) #117

[MoisesAldas]

i take this problem to resolve