MD3 Themes for OpenCode TUI

194 static Material Design 3 (Material You) themes for the OpenCode TUI: 9 variants × 12 hues (monochrome only ships hue 0), plain + OLED, each file carrying both light and dark appearances (OpenCode switches itself).

Light	Dark

More screenshots in docs/ on GitHub.

Requirements

• A terminal with truecolor support (COLORTERM=truecolor), otherwise colors degrade to the nearest 256-color approximation.
• Node.js 22+ (installer only; the themes themselves are plain JSON).

Install

One-click full install (194 themes) into your user themes directory (requires the published package, v0.0.1+):

npx -y -p @sandlada/opencode-material-theme opencode-md3-themes install

Preview without installing:

npx -y -p @sandlada/opencode-material-theme opencode-md3-themes --dry-run

Install a subset (expressive greens, plain only):

npx -y -p @sandlada/opencode-material-theme opencode-md3-themes install --variant expressive --hue 120,150 --oled plain

List what the package ships:

npx -y -p @sandlada/opencode-material-theme opencode-md3-themes list

Manual install via git (bash):

git clone --depth 1 https://github.com/sandlada/opencode-material-theme.git
mkdir -p ~/.config/opencode/themes
cp opencode-material-theme/tui/*.json ~/.config/opencode/themes/

Manual install via git (PowerShell):

git clone --depth 1 https://github.com/sandlada/opencode-material-theme.git
New-Item -ItemType Directory -Path "$env:USERPROFILE\.config\opencode\themes" -Force
Copy-Item -Path ".\opencode-material-theme\tui\*.json" -Destination "$env:USERPROFILE\.config\opencode\themes\" -Force

Single theme via curl:

mkdir -p ~/.config/opencode/themes
curl -o ~/.config/opencode/themes/md3-expressive-120-oled.json \
  https://raw.githubusercontent.com/sandlada/opencode-material-theme/main/tui/md3-expressive-120-oled.json

Use

Pick a theme inside OpenCode with /theme, or pin one in tui.json:

{ "$schema": "https://opencode.ai/tui.json", "theme": "md3-expressive-120-oled" }

Theme names

md3-{variant}-{hue}[-oled][-high|-reduced].json, all lowercase:

• {variant}: monochrome, neutral, tonal-spot, vibrant, expressive, fidelity, content, rainbow, fruit-salad
• {hue}: HCT hue 0-330 step 30 (monochrome only ships hue 0); every source is Hct.from(hue, 75, 50)
• each file holds light and dark ({ "dark": …, "light": … }); -oled marks the file whose dark half is pitch-black

Regenerate from source

npm install
bun scripts/generate-md3-matrix.mjs --out ./tui

Single hue:

bun scripts/generate-md3-tokens.mjs --variant Expressive --hue 120 --out ./tui

Generation fails closed on schema drift, unknown roles, and contrast violations (text 4.5, muted/wash 3.0; reduced text 3.0 by design). See AGENTS.md for the mapping and naming contracts.

License

MIT, copyright Kai-Orion & Sandlada.