What are Claude themes?

There are two kinds. A backdrop sits behind the chat in the Claude desktop app, with frosted glass panels on top: either an animated scene or a still picture. A color theme is a small JSON file that recolors Claude Code in the terminal: the accent, the diff colors, the message backgrounds and so on.

Do these work in T3 Code?

Yes. Every backdrop and color theme made for this site also comes as a T3 Code theme: copy the T3 Code prompt on its card and paste it into your agent, which downloads the theme file and runs t3 theme set . In T3 Code an animated scene shows as a still picture behind the chat, and the picture needs a build with custom theme CSS (nightly as of November 2026). Community themes are other people's files for Claude Code, so they have no T3 Code version.

How do I turn on a backdrop?

Copy the install prompt on any backdrop and paste it into Claude Code. Claude installs the agentthemes plugin if you do not have it, then tells you the command to type, for example /agentthemes night-reef . Backdrops need a version of the Claude desktop app that draws them. In a new session the backdrop appears after you send your first message.

How do I install a terminal color theme?

Open Terminal color themes , copy the install prompt on any theme and paste it into Claude Code. Claude saves one JSON file into ~/.claude/themes/ . Then run /theme in Claude Code and pick it from the list. If that folder did not exist before, restart Claude Code once.

Does a backdrop apply to everything I have open?

Yes. It is one choice for every project and session. Use /agentthemes off to clear it.

Why are some backdrops marked light and some dark?

Each scene is drawn for a light or a dark window so the text on top stays readable. Eight of the twenty come as a light and dark pair. Pick one that matches the appearance setting of your app.

Can I turn the motion off?

The scenes stop moving when your system asks for reduced motion. That is how the plugin is built, and the previews on this page behave the same way.

Yes. The theme-examples plugin is published as an example to read, copy and change, under the Apache 2.0 license. For terminal colors, a theme is a JSON file with a name, a base and a list of color overrides. The Claude Code terminal guide lists every color you can set.

Is this an official Anthropic site?

No. This is an independent directory and is not affiliated with Anthropic. The backdrops shown here are Anthropic's own examples, reproduced unchanged under the Apache 2.0 license. The terminal color themes were built for this site from each palette's published colors. The Omarchy backgrounds come from the Omarchy repository under its MIT license, and this site is not affiliated with Omarchy either.

Yes. Everything here is free to use, and the full list is available as one file: themes.json .

Agent Themes: backdrops and color themes for Claude and T3 Code

Desktop backdrops

20 animated scenes by Anthropic.

Honu Lagoon
A live ASCII lagoon from above: a tile turtle swims by a sand island.
- Made for: Light
- Made by: Anthropic
- License: Apache-2.0
Koi Mosaic
A tiled koi pond from above: two koi, lily pads, slow ripples.
- Made for: Light
- Made by: Anthropic
- License: Apache-2.0
Halftone Dawn
A two-ink riso sunrise: halftone dots that breathe outward.
- Made for: Light
- Made by: Anthropic
- License: Apache-2.0
Halftone Dusk
The riso sunrise on night-blue stock: an ember sun in breathing dots.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Plotter Tide
Pen-plotter tide lines drawing themselves on warm paper.
- Made for: Light
- Made by: Anthropic
- License: Apache-2.0
Plotter Tide, Night
The plotter's tide chart in pale ink on blue-black night paper.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Dither Dunes
One-bit dunes on sand paper, shaded in dots, under a terracotta sun.
- Made for: Light
- Made by: Anthropic
- License: Apache-2.0
Dither Dunes Night
The same dunes after dark: pale dots on umber, an ember sun.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Paper Garden
Cut-paper leaves at the edges of a warm white sheet, one coral bloom.
- Made for: Light
- Made by: Anthropic
- License: Apache-2.0
Paper Garden, Kraft
Cut-paper leaves at the edges of dark kraft paper, one coral bloom.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Night Reef
The lagoon after dark: a turtle and a ray that glow as they swim.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Snow Pines
An ASCII pine forest at dusk, snow drifting down through the trees.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Braille Stars
A slow night sky drawn dot by dot on a braille grid.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Block Clouds
Night clouds built from blocks on a teletext grid, drifting in.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Vector Range
Phosphor mountains on black; an amber beam keeps retracing them.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Departure Board
An amber LED board re-lettering itself, row by row.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Blueprint
A cyanotype sheet; a comet goes round its plotted orbit in the corner.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Deep Water
Light falling through deep water, and one quiet turtle.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Aurora
Northern lights swaying over a dark ridge.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0
Ember
A warm glow in the corners and a few embers rising.
- Made for: Dark
- Made by: Anthropic
- License: Apache-2.0

Holidays

4 animated scenes for the season: Thanksgiving, Hanukkah, Christmas and New Year.

Harvest Dusk
Download the file
Thanksgiving. Warm fields under a pale gold sky, pumpkins in the corner and a bare tree letting go of its last leaves.
- Made for: Light
- Made by: bestagentthemes.com
Eight Lights
Download the file
Hanukkah. A menorah with every candle lit on a deep blue night: the flames flicker and gold motes drift up.
- Made for: Dark
- Made by: bestagentthemes.com
Winter Lights
Download the file
Christmas. Snow falls in three layers between pines strung with colored bulbs, under a full moon.
- Made for: Dark
- Made by: bestagentthemes.com
Midnight Fireworks
Download the file
New Year. Fireworks open and fade over a city skyline while windows blink and the river catches the colors.
- Made for: Dark
- Made by: bestagentthemes.com

Games

2 animated scenes with a video game look.

Neon Coast
Download the file
Eighties crime games. An eighties beach city at sunset: a striped sun, swaying palms, a blinking skyline and pink and teal light on the water.
- Made for: Dark
- Made by: bestagentthemes.com
Pixel Overworld
Download the file
Pixel platformers. Blocky green hills, floating grass ledges, bobbing gems and square clouds, all on a 20 pixel grid.
- Made for: Light
- Made by: bestagentthemes.com

Omarchy backgrounds

33 pictures from Omarchy's themes.

Color Fade
Download the file
- Made for: Light
- From: Omarchy Catppuccin Latte
- License: MIT
Cosmic
Download the file
- Made for: Dark
- From: Omarchy Ethereal
- License: MIT
Tree Tops
Download the file
- Made for: Dark
- From: Omarchy Everforest
- License: MIT
Orb
Download the file
- Made for: Light
- From: Omarchy Flexoki Light
- License: MIT
Eyes Wide
Download the file
- Made for: Dark
- From: Omarchy Last Horizon
- License: MIT
Bokeh
Download the file
- Made for: Dark
- From: Omarchy Last Horizon
- License: MIT
New Horizons
Download the file
- Made for: Dark
- From: Omarchy Last Horizon
- License: MIT
Opinions Equally
Download the file
- Made for: Dark
- From: Omarchy Lumon
- License: MIT
Pastel Clouds
Download the file
- Made for: Light
- From: Omarchy Lupine
- License: MIT
Elegant Blue Wave
Download the file
- Made for: Light
- From: Omarchy Lupine
- License: MIT
Abstract Wave
Download the file
- Made for: Light
- From: Omarchy Lupine
- License: MIT
Dark Waters
Download the file
- Made for: Dark
- From: Omarchy Matte Black
- License: MIT

Browse every category

Community themes

192 terminal color themes from GitHub. Here are the first 8.

See all 192 Submit yours

> add a dark mode toggle
● I'll update the settings page.
settings.tsx
- const theme = 'light'
+ const theme = usePreference()
✓ 12 passed ✗ 1 failed ! 2 warnings
plan mode accept edits permission
aurora
View the file
- Made for: Dark
- By: nicknisi
- License: MIT
- GitHub stars: 3004
> add a dark mode toggle
● I'll update the settings page.
settings.tsx
- const theme = 'light'
+ const theme = usePreference()
✓ 12 passed ✗ 1 failed ! 2 warnings
plan mode accept edits permission
moonstone
View the file
- Made for: Dark
- By: nicknisi
- License: MIT
- GitHub stars: 3004
> add a dark mode toggle
● I'll update the settings page.
settings.tsx
- const theme = 'light'
+ const theme = usePreference()
✓ 12 passed ✗ 1 failed ! 2 warnings
plan mode accept edits permission
orchid-dusk
View the file
- Made for: Dark
- By: nicknisi
- License: MIT
- GitHub stars: 3004
> add a dark mode toggle
● I'll update the settings page.
settings.tsx
- const theme = 'light'
+ const theme = usePreference()
✓ 12 passed ✗ 1 failed ! 2 warnings
plan mode accept edits permission
seaglass
View the file
- Made for: Dark
- By: nicknisi
- License: MIT
- GitHub stars: 3004
> add a dark mode toggle
● I'll update the settings page.
settings.tsx
- const theme = 'light'
+ const theme = usePreference()
✓ 12 passed ✗ 1 failed ! 2 warnings
plan mode accept edits permission
tokyo-night
View the file
- Made for: Dark
- By: nicknisi
- License: MIT
- GitHub stars: 3004
> add a dark mode toggle
● I'll update the settings page.
settings.tsx
- const theme = 'light'
+ const theme = usePreference()
✓ 12 passed ✗ 1 failed ! 2 warnings
plan mode accept edits permission
Penumbra Dark+
View the file
- Made for: Dark
- By: nealmckee
- License: MIT
- GitHub stars: 1420
> add a dark mode toggle
● I'll update the settings page.
settings.tsx
- const theme = 'light'
+ const theme = usePreference()
✓ 12 passed ✗ 1 failed ! 2 warnings
plan mode accept edits permission
Penumbra Dark++
View the file
- Made for: Dark
- By: nealmckee
- License: MIT
- GitHub stars: 1420
> add a dark mode toggle
● I'll update the settings page.
settings.tsx
- const theme = 'light'
+ const theme = usePreference()
✓ 12 passed ✗ 1 failed ! 2 warnings
plan mode accept edits permission
Penumbra Light
View the file
- Made for: Light
- By: nealmckee
- License: MIT
- GitHub stars: 1420

Commands

Everything you type to install, switch and clear a theme.

Claude backdrops

claude plugin install agentthemes --marketplace https://bestagentthemes.com/marketplace.json

Run once in a terminal. It adds the plugin that holds every backdrop here.

/reload-plugins

Run in Claude Code after installing, or start a new session.

/agentthemes list

Names every backdrop.

/agentthemes night-reef

Applies a backdrop.

/agentthemes off

Clears it.

Claude Code colors

/theme

Opens the theme picker. Saved themes show up as custom:<name>.

~/.claude/themes/

The folder Claude Code reads color themes from. One JSON file per theme.

Ctrl+E

In the picker, edits the highlighted custom theme.

T3 Code

t3 theme set <file>

Installs a downloaded theme file and switches to it. The install prompt runs this for you.

~/.t3/userdata/themes/

The folder T3 Code reads theme files from, if there is no t3 command.

Cmd+Option+A

Opens the theme picker (Ctrl+Alt+A on Windows and Linux).

t3 theme set t3-chat

Goes back to the built-in theme.

Agent Themes

Desktop backdrops

Honu Lagoon

Koi Mosaic

Halftone Dawn

Halftone Dusk

Plotter Tide

Plotter Tide, Night

Dither Dunes

Dither Dunes Night

Paper Garden

Paper Garden, Kraft

Night Reef

Snow Pines

Braille Stars

Block Clouds

Vector Range

Departure Board

Blueprint

Deep Water

Aurora

Ember

Holidays

Harvest Dusk

Eight Lights

Winter Lights

Midnight Fireworks

Games

Neon Coast

Pixel Overworld

Omarchy backgrounds

Color Fade

Cosmic

Tree Tops

Orb

Eyes Wide

Bokeh

New Horizons

Opinions Equally

Pastel Clouds

Elegant Blue Wave

Abstract Wave

Dark Waters

Community themes

aurora

moonstone

orchid-dusk

seaglass

tokyo-night

Penumbra Dark+

Penumbra Dark++

Penumbra Light