> ## Documentation Index
> Fetch the complete documentation index at: https://docs.msghello.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Accessibility

> Contrast mode, keyboard operation and keyboard shortcuts in the portal.

The msg.Hello portal follows the German Accessible Information Technology Ordinance (BITV). You can operate all functions without a mouse, and a dedicated contrast mode supports people with impaired vision.

## Contrast mode

In the display selection in the top navigation, you choose between **Light**, **Dark** and **Contrast mode**. Contrast mode uses a fixed color palette whose combinations are tested for sufficient contrast. It replaces your tenant's primary color.

If you have enabled increased contrast in your operating system, the portal automatically starts in contrast mode as long as you don't choose another display mode. More on this under [Display and language](https://docs.msghello.ai/en/einstellungen.md#display-and-language).

> [!TIP]
>
> If you as an administrator choose a primary color with too little contrast, the portal warns you. Users who need more contrast then switch to contrast mode.

## Keyboard operation

With `Tab` and `Shift` + `Tab`, you reach every control.

| Element | Operation |
| - | - |
| States in the flow graph | `Enter` or `Space` selects the state. A focused state is automatically scrolled into view. |
| Table rows, for example in the call list | `Enter` or `Space` opens the row. Sortable column headers are buttons. |
| Panel dividers in the flow editor and in the test call | Arrow keys move the divider in 5 percent steps, `Home` and `End` move it to the edge. |
| Disabled buttons | They remain focusable and state the reason in the tooltip, for example unsaved changes or validation errors. |

If you drag a panel divider with the mouse, `Esc` cancels the action and restores the previous layout.

## Keyboard shortcuts in the flow editor

| Action | Windows / Linux | macOS |
| - | - | - |
| Undo | `Ctrl` + `Z` | `⌘` + `Z` |
| Redo | `Ctrl` + `Shift` + `Z` or `Ctrl` + `Y` | `⌘` + `Shift` + `Z` |

Details under [Undo and redo](https://docs.msghello.ai/en/flows-bauen.md#undo-and-redo).

## Screen readers

Headings, lists and regions of the portal are marked up semantically, so screen readers can read out the structure of a page. Buttons and controls carry descriptive names, and sorted table columns announce their sort direction.

## Language and date format

The portal is available in German and English. Dates and times follow the selected portal language, not the browser settings.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.