Ghostty · miasma · dark · unknown

Miasma Default for Ghostty

Miasma Default for Ghostty: #222222 background, 8.8:1 body contrast, and the full 16-color ANSI palette. Save the file to ~/.config/ghostty/themes/<name>. Add theme = <name> to ~/.config/ghostty/config. The same palette also exports to the other supported terminals.

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Preview

Palette

ANSI

black
red
green
yellow
blue
magenta
cyan
white
b.Black
b.Red
b.Green
b.Yellow
b.Blue
b.Magenta
b.Cyan
b.White

Base colors

Background
Foreground
Cursor
Selection

Contrast

WCAG · vs #222222
ColorHexRatioLevel
Foreground#c2c2b08.82:1AAA
Cursor#c2c2b08.82:1AAA
Selection#6666662.77:1—
black#0000001.32:1—
red#6857422.30:1—
green#5f875f3.88:1AA large
yellow#b36d433.93:1AA large
blue#78824b3.86:1AA large
magenta#bb77444.42:1AA large
cyan#c9a5546.81:1AA
white#d7c4839.18:1AAA
brightBlack#6666662.77:1—
brightRed#6857422.30:1—
brightGreen#5f875f3.88:1AA large
brightYellow#b36d433.93:1AA large
brightBlue#78824b3.86:1AA large
brightMagenta#bb77444.42:1AA large
brightCyan#c9a5546.81:1AA
brightWhite#d7c4839.18:1AAA

Install for Ghostty

Documentation
  1. Save the file to ~/.config/ghostty/themes/<name>.
  2. Add theme = <name> to ~/.config/ghostty/config.
  3. Reload Ghostty or open a new window.
One-line installmiasma-default.conf
mkdir -p "$HOME/.config/ghostty/themes" && curl -fsSL "https://terminalthemes.iwwi.app/ports/ghostty/miasma-default.conf" -o "$HOME/.config/ghostty/themes/miasma-default" && { grep -qxF 'theme = miasma-default' "$HOME/.config/ghostty/config" 2>/dev/null || printf '\ntheme = %s\n' 'miasma-default' >> "$HOME/.config/ghostty/config"; }
# Open a new Ghostty window.
Full configuration
background = #222222
foreground = #c2c2b0
cursor-color = #c2c2b0
cursor-text = #222222
selection-background = #666666
selection-foreground = #c2c2b0

palette = 0=#000000
palette = 1=#685742
palette = 2=#5f875f
palette = 3=#b36d43
palette = 4=#78824b
palette = 5=#bb7744
palette = 6=#c9a554
palette = 7=#d7c483
palette = 8=#666666
palette = 9=#685742
palette = 10=#5f875f
palette = 11=#b36d43
palette = 12=#78824b
palette = 13=#bb7744
palette = 14=#c9a554
palette = 15=#d7c483
Downloadmiasma-default.conf

Let an agent install it

Give this prompt to your coding agent. It includes the Ghostty install page, native file, steps, and safety constraints.

Help me install the Miasma Default theme for Ghostty on this machine.

Read the install page: https://terminalthemes.iwwi.app/ghostty/themes/miasma/default/
Native theme file: https://terminalthemes.iwwi.app/ports/ghostty/miasma-default.conf

Follow these steps:
1. Save the file to ~/.config/ghostty/themes/<name>.
2. Add theme = <name> to ~/.config/ghostty/config.
3. Reload Ghostty or open a new window.

One-line install:
mkdir -p "$HOME/.config/ghostty/themes" && curl -fsSL "https://terminalthemes.iwwi.app/ports/ghostty/miasma-default.conf" -o "$HOME/.config/ghostty/themes/miasma-default" && { grep -qxF 'theme = miasma-default' "$HOME/.config/ghostty/config" 2>/dev/null || printf '\ntheme = %s\n' 'miasma-default' >> "$HOME/.config/ghostty/config"; }
# Open a new Ghostty window.

Inspect and back up my existing configuration first. Change only what this theme needs; do not overwrite unrelated settings. Ask before changing my default theme. After installing, verify the file exists and tell me which files changed.

FAQ

Frequently asked questions

Where does the Miasma Default theme go in Ghostty?

Save the file to ~/.config/ghostty/themes/<name>. Add theme = <name> to ~/.config/ghostty/config.

How do I install Miasma Default in Ghostty?

Download the Miasma Default configuration file from this page, run the one-line install command, or place the file in the Ghostty location above. Reload Ghostty or open a new window.

Does Miasma Default keep its colors in Ghostty?

Yes. It uses #222222 for the background, #c2c2b0 for the foreground, and the full 16-color ANSI palette, with 8.8:1 body contrast. Only the Ghostty file format changes.

Can I use Miasma Default in another terminal?

Yes. The same palette exports to Herdr App, Ghostty, Alacritty, Kitty, iTerm2, and Windows Terminal; only the install path and file format change.