Mailbox With Raised Flag
voxel icon

A curved-top mailbox on a post with the flag up and the door open, one envelope showing inside. The flag is the accent — a thin vertical in the sharpest colour of the family, placed so it breaks the silhouette and is legible even at favicon size.

Inbox and notifications, newsletter signups, contact sections, "you have something waiting" states.

Every icon in the set is generated by voxel-icon, an agent skill for GPT Image 2: one coarse module grid, one palette family per shape, so a new subject drops into an existing screen without re-styling anything around it. The Mailbox With Raised Flag icon ships in a native palette and a directed one (Sky Melon) — the same geometry, recoloured, so you can pick the one that sits better against your background. The pool it comes from is at 1100 icons and grows on its own.