discourse/plugins/chat/assets/stylesheets/common/chat-channel-name.scss

.chat-channel-name {
  @include ellipsis;
  color: var(--primary);

  .has-unread & {
    font-weight: bold;
  }

  &__label {
    display: flex;
    align-items: center;
    white-space: nowrap;
    gap: 0.5rem;
  }

  .emoji {
    height: 1em;
    width: 1em;
    vertical-align: baseline;
  }

  .chat-channel-unread-indicator {
    @include chat-unread-indicator;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 8px;
    height: 8px;

    &.-urgent {
      width: auto;
      height: auto;
      min-width: 0.6em;
      padding: 0.3em 0.5em;
    }
  }
}