atlas-ragnarok

Tech-blue thunder above. Crimson fire below. Pure black through the middle. The end-of-days terminal theme for Ghostty.

The palette in motion

_{The storm-fire glow is the same atlas-ragnarok vignette you'd see in Ghostty — screenshots/_shader.py is a pixel-exact reimplementation of atlas-ragnarok.glsl (same colors, same smoothsteps, same luminance mask), applied to every frame in post since vhs/ttyd can't run the GPU shader directly. Text never gets tinted; backgrounds carry the glow. Also available as MP4. Regenerate with sh screenshots/gen.sh (needs vhs, ffmpeg, webp, bat, tree, pillow, numpy).}

A Ghostty theme + custom shader inspired by the Norse apocalypse — where the sky cracks open with electric storm-blue and the world burns crimson beneath. The middle stays pure black. Text never gets tinted: a luminance mask keeps code, prompts, and output perfectly legible at every shader intensity.

Built on the syntactic structure of Vesper (the orange-and-peppermint Rauno Freiberg VSCode theme), with the orange family remapped to a Tailwind blue gradient and a storm/fire vignette layered on top of pure-black #000000.

Install

git clone https://github.com/AyoubTadlaoui/atlas-ragnarok.git
cd atlas-ragnarok

mkdir -p ~/.config/ghostty/themes ~/.config/ghostty/shaders
cp atlas-ragnarok.conf ~/.config/ghostty/themes/
cp atlas-ragnarok.glsl ~/.config/ghostty/shaders/

# Activate it
echo 'config-file = ~/.config/ghostty/themes/atlas-ragnarok.conf' \
  >> "$HOME/Library/Application Support/com.mitchellh.ghostty/config.ghostty"

Reload with Cmd+Shift+, or restart Ghostty.

git clone https://github.com/AyoubTadlaoui/atlas-ragnarok.git
cd atlas-ragnarok

mkdir -p ~/.config/ghostty/themes ~/.config/ghostty/shaders
cp atlas-ragnarok.conf ~/.config/ghostty/themes/
cp atlas-ragnarok.glsl ~/.config/ghostty/shaders/

# Activate it
echo 'config-file = ~/.config/ghostty/themes/atlas-ragnarok.conf' \
  >> ~/.config/ghostty/config

Reload with Ctrl+Shift+, or restart Ghostty.

Ghostty doesn't yet ship a native Windows build. Run it under WSL2 with an X-server (WSLg on Windows 11 handles this automatically).

# Inside your WSL2 shell
git clone https://github.com/AyoubTadlaoui/atlas-ragnarok.git
cd atlas-ragnarok

mkdir -p ~/.config/ghostty/themes ~/.config/ghostty/shaders
cp atlas-ragnarok.conf ~/.config/ghostty/themes/
cp atlas-ragnarok.glsl ~/.config/ghostty/shaders/

echo 'config-file = ~/.config/ghostty/themes/atlas-ragnarok.conf' \
  >> ~/.config/ghostty/config

Restart Ghostty in WSLg. If you're on Windows 10 (no WSLg), install VcXsrv and set DISPLAY in your WSL profile.

Want the palette in Windows Terminal or WezTerm instead? See Terminals — the palette = N=#hex lines map cleanly to either format. The vignette shader is Ghostty-only.

For Windows users who want the raw files without git:

$dest = "$HOME\.config\ghostty"
New-Item -ItemType Directory -Force -Path "$dest\themes","$dest\shaders" | Out-Null
Invoke-WebRequest "https://raw.githubusercontent.com/AyoubTadlaoui/atlas-ragnarok/main/atlas-ragnarok.conf" -OutFile "$dest\themes\atlas-ragnarok.conf"
Invoke-WebRequest "https://raw.githubusercontent.com/AyoubTadlaoui/atlas-ragnarok/main/atlas-ragnarok.glsl" -OutFile "$dest\shaders\atlas-ragnarok.glsl"
Add-Content "$dest\config" "config-file = ~/.config/ghostty/themes/atlas-ragnarok.conf"

mkdir -p ~/.config/ghostty/themes ~/.config/ghostty/shaders
curl -fsSL https://raw.githubusercontent.com/AyoubTadlaoui/atlas-ragnarok/main/atlas-ragnarok.conf \
  -o ~/.config/ghostty/themes/atlas-ragnarok.conf
curl -fsSL https://raw.githubusercontent.com/AyoubTadlaoui/atlas-ragnarok/main/atlas-ragnarok.glsl \
  -o ~/.config/ghostty/shaders/atlas-ragnarok.glsl

CONFIG="$HOME/.config/ghostty/config"
[[ "$OSTYPE" == "darwin"* ]] && CONFIG="$HOME/Library/Application Support/com.mitchellh.ghostty/config.ghostty"
echo 'config-file = ~/.config/ghostty/themes/atlas-ragnarok.conf' >> "$CONFIG"

Palette

ANSI colors are Vesper's 5-color system, with the warm-accent family replaced by a tech-blue gradient (Tailwind blue-600 → blue-300).

Shader

The atlas-ragnarok.glsl shader adds the storm-fire vignette:

• Top ~30% of the screen — thunder-blue glow (#0e1d52-ish, vignetted)
• Bottom ~30% of the screen — crimson glow (#380404-ish, vignetted)
• Middle ~40% — untouched pure black
• Text pixels — never tinted (luminance mask kicks in at lum > 0.04)

The intensity curves are tuned for OLED + modern LCD. If you want to dial it up or down, the knobs are at the bottom of atlas-ragnarok.glsl:

vec3 thunder_blue = vec3(0.055, 0.115, 0.320);  // raise for more sky
vec3 red_tint     = vec3(0.220, 0.014, 0.028);  // raise for more fire

float top_only    = smoothstep(0.65, 0.85, 1.0 - uv.y);  // wider blue band
float bottom_only = smoothstep(0.65, 0.85, uv.y);        // wider red band

Code editors

Atlas Ragnarok ships as a full color theme to every major editor. See EDITORS.md for the publish matrix + maintainer notes.

Full syntax + UI coverage in every port: comments, strings, numbers, keywords, functions, types, tags, variables, properties, decorators, markdown, diff, git decorations, debugger, terminal pane, and Treesitter / LSP semantic tokens where supported.

Terminals

• Ghostty ≥ 1.0 — full support (theme + shader). Once mbadolato/iTerm2-Color-Schemes#697 merges, theme = atlas-ragnarok becomes a built-in option (no manual file copy). The shader still needs the one-time cp from this repo.
• Alacritty / Kitty / WezTerm / iTerm2 / Hyper / Konsole / Foot / Termite / Termux / +20 others — same iTerm2-Color-Schemes PR auto-flows the palette to every terminal in that submodule on merge.
• Alacritty — palette ported in themes/alacritty.toml. Import via general.import = ["~/.config/alacritty/themes/atlas-ragnarok.toml"].
• Kitty — palette ported in themes/kitty.conf. Drop into ~/.config/kitty/ and include atlas-ragnarok.conf from your kitty.conf.
• WezTerm — palette ported in themes/wezterm.lua. Drop into ~/.config/wezterm/colors/, then reference via color_scheme = 'atlas-ragnarok'.
• iTerm2 — palette ported in themes/iterm2.itermcolors. Double-click the file in Finder to import as a Color Preset.
• Windows Terminal — palette ported in themes/windows-terminal.json. Add the object to the schemes array in settings.json, then set "colorScheme": "atlas-ragnarok" on a profile.
• Other terminals — PRs welcome — see CONTRIBUTING.md.

Credits

• Palette structure inherited from raunofreiberg/vesper (MIT)
• Tailwind color tokens for the blue gradient
• Forged by Atlas Kaisar

License

MIT — do whatever you want, just keep the copyright notice.