shadcn-ui/apps/v4/examples/base/button-icon.tsx

import { Button } from "@/examples/base/ui/button"
import { CircleFadingArrowUpIcon } from "lucide-react"

export default function ButtonIcon() {
  return (
    <Button variant="outline" size="icon">
      <CircleFadingArrowUpIcon />
    </Button>
  )
}