Slack Channel Fill is a solid-style Icon from Outlined Fill - Streamline Material set.

The Slack Channel Fill icon shows two opposing arrows forming a square loop around a hashtag. Drawn in the solid style on a 24px grid, its filled geometry keeps the symbol clear in compact interfaces. Use it for Slack channels, team chat, workspace navigation, and messaging controls. It belongs to Outlined Fill - Streamline Material set in the Streamline Material family.