diamond-minus from coolicons in Line with regular corners. remove, subtract, collapse, decrease, delete, less, rhombus, lozenge. Other styles and corners: @coolicons/<style>/<radius>/diamond-minus with line, duocolor, duotone, fill or bulk and sharp or round. Leave out regular, like @coolicons/fill/diamond-minus, and use @coolicons/diamond-minus for line with regular corners.
pnpm dlx shadcn@latest add "https://coolicons.cool/r/diamond-minus.json"