riot-web/docs/labs.md

Labs features

If Labs is enabled in the Element config, you can enable some of these features by going to Settings->Labs. This list is non-exhaustive and subject to change, chat in #element-web:matrix.org for more information.

Be warned! Labs features are not finalised, they may be fragile, they may change, they may be dropped. Ask in the room if you are unclear about any details here.

Render LaTeX maths in messages (feature_latex_maths)

Enables rendering of LaTeX maths in messages using KaTeX. LaTeX between single dollar-signs is interpreted as inline maths and double dollar-signs as display maths (i.e. centred on its own line).

New spinner design (feature_new_spinner)

Replaces the old spinner image with a new, svg-based one featuring a sleeker design.

Message pinning (feature_pinning)

Allows you to pin messages in the room. To pin a message, use the 3 dots to the right of the message and select "Pin".

Custom status (feature_custom_status)

An experimental approach for supporting custom status messages across DMs. To set a status, click on your avatar next to the message composer.

Custom tags (feature_custom_tags)

An experimental approach for dealing with custom tags. Custom tags will appear in the bottom portion of the community filter panel.

Setting custom tags is not supported by Element.

Render simple counters in room header (feature_state_counters)

Allows rendering of labelled counters above the message list.

Once enabled, send a custom state event to a room to set values:

1. In a room, type /devtools to bring up the devtools interface
2. Click "Send Custom Event"
3. Toggle from "Event" to "State Event"
4. Set the event type to: re.jki.counter and give it a unique key
5. Specify the content in the following format:

{
    "link": "",
    "severity": "normal",
    "title": "my counter",
    "value": 0
}

That's it. Now should see your new counter under the header.

Multiple integration managers (feature_many_integration_managers)

Exposes a way to access all the integration managers known to Element. This is an implementation of MSC1957.

New ways to ignore people (feature_mjolnir)

When enabled, a new settings tab appears for users to be able to manage their ban lists. This is a different kind of ignoring where the ignored user's messages still get rendered, but are hidden by default.

Ban lists are rooms within Matrix, proposed as MSC2313. Mjolnir is a set of moderation tools which support ban lists.

Verifications in DMs (feature_dm_verification)

An implementation of MSC2241. When enabled, verification might not work with devices which don't support MSC2241.

This also includes a new implementation of the user & member info panel, designed to share more code between showing community members & room members. Built on top of this new panel is also a new UX for verification from the member panel.

The setting will be removed in a future release, enabling it non-optionally for all users.

Bridge info tab (feature_bridge_state)

Adds a "Bridge Info" tab to the Room Settings dialog, if a compatible bridge is present in the room. The Bridge info tab pulls information from the m.bridge state event (MSC2346). Since the feature is based upon a MSC, most bridges are not expected to be compatible, and users should not rely on this tab as the single source of truth just yet.

Presence indicator in room list (feature_presence_in_room_list)

This adds a presence indicator in the room list next to DM rooms where the other person is online.

Custom themes (feature_custom_themes)

Custom themes are possible through Element's theme support, though normally these themes need to be defined in the config for Element. This labs flag adds an ability for end users to add themes themselves by using a URL to the JSON theme definition.

For some sample themes, check out aaronraimist/element-themes.

Message preview tweaks

To enable message previews for reactions in all rooms, enable feature_roomlist_preview_reactions_all. To enable message previews for reactions in DMs, enable feature_roomlist_preview_reactions_dms, ignored when it is enabled for all rooms.

Communities v2 prototyping (feature_communities_v2_prototypes) [In Development]

This is a highly experimental implementation for parts of the communities v2 experience. It does not represent what communities v2 will look/feel like and can/will change without notice. Due to the early stages this feature is in and the requirement for a compatible homeserver, we will not be accepting issues or feedback for this functionality at this time.

Dehydrated devices (feature_dehydration)

Allows users to receive encrypted messages by creating a device that is stored encrypted on the server, as described in MSC2697.