---
title: "Unknown 2 Icon | Free Download PNG & SVG | Material Pro Line"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/unknown-2--32240
canonical_url: "https://www.streamlinehq.com/icons/download/unknown-2--32240"
summary: "Clean line icon of a circle split diagonally, with plus and minus symbols. Used for add/remove controls and adjustments."
---

# Unknown 2 icon

The Unknown 2 icon shows a circle divided diagonally, with a plus symbol in the dark upper section and a minus symbol in the light lower section. Drawn in the Material Pro Line style on a 24px grid for crisp, uncluttered recognition. Use it for add/remove controls, quantity adjustments, comparison tools, and editing interfaces. It belongs to Material Pro Line set in the Streamline Material family.

## Preview

![Clean line icon of a circle split diagonally, with plus and minus symbols. Used for add/remove controls and adjustments.](https://assets.streamlinehq.com/image/private/w_240,h_240,ar_1/f_auto/v1/icons/photo-image/unknown-2-b4tvmofqbaiiztybn26oxg.png/unknown-2-h7kue8ny6hczltm9yvayti.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Unknown 2
- **Type**: Icon
- **Set**: [Material Pro Line](/icons/material-pro-line.md) — Google Material Pro offers a versatile collection of high-quality, easily recognizable icons built on Material Design principles, ensuring clarity, consistency, and simplicity for a wide range of digital applications. The Line style is perfect for projects that prioritize simplicity, seamlessly adapting to both light and dark backgrounds. All Material Pro icons are designed on a 24px grid.
- **Family**: [Streamline Material](/icons/material-pro.md)
- **Style**: Line
- **Category**: Photo Image › Photo Image
- **Default size**: 24px
- **Pricing**: Pro
- **Author**: [Streamline](https://home.streamlinehq.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: unknown, positive, negative, contrast, balance, duality, opposite, charged, symbolic, energy, polarity

## Download

- [Download Unknown 2 on Streamline](https://www.streamlinehq.com/icons/download/unknown-2--32240)

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