> For the complete documentation index, see [llms.txt](https://fifo-docs.gitbook.io/colibri/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://fifo-docs.gitbook.io/colibri/colibri-identicon/identicon.md).

# Overview

`@colibri/identicon` generates the familiar symmetric SEP-33 account image locally. It accepts Stellar Ed25519 G-addresses and extends the same algorithm to C-address contract IDs. Pattern and color are derived without querying a server. An address produces the same result on every network, including when the account has never been funded or the contract has not been deployed.

## Installation and rendering

Create SVG, PNG or data URLs with a local [`Identicon`](/colibri/colibri-identicon/rendering.md) instance. Start with [installation and rendering](/colibri/colibri-identicon/rendering.md#installation-and-rendering) for a complete script.

## Contract addresses: Colibri extension

C-addresses use the same pattern and color algorithm as G-addresses. Read [contract address identicons](/colibri/colibri-identicon/contract-addresses.md) for an example and the boundaries of this Colibri extension to SEP-33.

## Explicit presentation

Choose size, padding, background and monochrome rendering explicitly. See [presentation controls](/colibri/colibri-identicon/rendering.md#explicit-presentation).

## Custom renderers

Use [`generateIdenticon`](/colibri/colibri-identicon/custom-renderers.md) to access the immutable cell matrix and color for your own renderer. See [custom renderers](/colibri/colibri-identicon/custom-renderers.md).

## Errors and compatibility

Handle [`IdenticonError`](/colibri/colibri-identicon/errors-and-compatibility.md) by code and understand the reference algorithm's byte offset. See [errors and compatibility](/colibri/colibri-identicon/errors-and-compatibility.md) and the [API reference](https://jsr.io/@colibri/identicon/doc).