# Brand.

## What does the component do?

- It identifies the sender of a page.

## When should the component be used?

- For all SBB apps.

## Rules

- The signet appears exactly once per page and is always located in the header.
- It is always positioned top-right.
- Variations of the signet are not permitted.
- The signet is always linked to the app homepage.

## Variants and States

- Default / Fallback

### Default

![Image of the standard signet](https://digital.sbb.ch/assets/images/mobile/brand-logo-default-light.webp "Standard signet")

![Image of the standard signet](https://digital.sbb.ch/assets/images/mobile/brand-logo-default-dark.webp "Standard signet")

### Fallback

![Darstellung des Signets, Fallback](https://digital.sbb.ch/assets/images/mobile/brand-logo-fallback-light.webp "Signet, Fallback")

![Darstellung des Signets, Fallback](https://digital.sbb.ch/assets/images/mobile/brand-logo-fallback-dark.webp "Signet, Fallback")

## Accessibility

- The signet must be entered with an alternative text (e.g. ‘Back to homepage’).

## Specification

[Design](https://www.figma.com/design/ZBotr4yqcEKqqVEJTQfSUa/Design-System-Mobile?m=auto&node-id=33-771&t=rQTLXnChqHrpKLB4-1)

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Source: https://digital.sbb.ch/en/design-system/mobile/basics/brand/