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Slack: hide message avatars

Hides the avatar thumbnails next to messages so the conversation looks calmer and more text-focused.

Code to copy

/* Hide the avatar thumbnails next to each message */
.c-message_kit__gutter__left .c-avatar,
.c-message__avatar,
[data-qa="message_content"] .c-message_kit__avatar {
  visibility: hidden !important;
}

How to use this example

1. Copy the code with the button above.
2. Install JustZix (2 minutes) and open the extension on the target page.
3. Add a new rule matching that page.
4. Paste the code into the rule's CSS panel and save — the effect appears instantly.