Icons

Material Symbols Mystery Outline Rounded Icon

IconStash indexes the Mystery Outline Rounded icon from Material Symbols alongside 134,701 icons from 28 open-source libraries. It uses stroked lines with no fill — clean, legible, and versatile at any size, making it well suited for general-purpose product UIs, design systems, component libraries, web applications, and marketing sites. Set an exact pixel size from 16px to 512px and download a lossless PNG in one click.

Open in editor Browse Material Symbols

Interactive Customizer

1.5px
128px

About this icon

Use the Mystery Outline Rounded icon

The Mystery Outline Rounded icon from Material Symbols fits naturally in general-purpose product UIs, design systems, component libraries, web applications, and marketing sites. Its outline style makes it ideal for app navigation bars, toolbar buttons, form labels, and UI controls where clarity at 16–24px is critical.

Open it in IconStash to set stroke color via presets or a custom hex value, choose an exact pixel size (16–512px), control stroke width (0.1–3px), and preview against dark, light, or checkered backgrounds before downloading.

Export formats

Copy clean SVG vectors with one click, generate custom-size PNG files from 16px to 512px, export JSX/React components ready to paste into your project, or use the icon as a CSS background-mask for flexible theming.

All exports are based on the same editable vector — so the Mystery Outline Rounded icon stays pixel-perfect at 16px, 24px, 48px, and any large marketing size.

Design & UX integration

Aesthetic characteristics

Mystery Outline Rounded belongs to Google's Material Symbols, which replaces static icon files with a variable font. Weight, Fill, Grade and Optical Size are all adjustable axes, so one file covers what used to need five. Optical Size is the most useful: the glyph is subtly redrawn for small sizes rather than just scaled down.

UX best practices

As a general interface glyph, the Mystery Outline Rounded icon does its job best between 16px and 24px, sitting next to a text label. Icon-only treatments work for a small set of universally understood actions, but comprehension falls off quickly once the action is specific to your product — so when in doubt, add the word.

Use in your project

React / npm — Material Symbols

/* Use Google Fonts CDN */
<link href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined" rel="stylesheet">

<!-- HTML usage: -->
<span class="material-symbols-outlined">mystery_outline_rounded</span>

Copy the SVG markup directly from the IconStash editor to use the Mystery Outline Rounded icon without any npm package — paste it into HTML, JSX, or a design tool.

Inline SVG (copy & paste)

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" role="img" aria-label="mystery-outline-rounded icon"><path fill="currentColor" d="M11 18q2.9 0 4.95-2.037T18 11q0-2.9-2.05-4.95T11 4Q8.075 4 6.038 6.05T4 11q0 2.925 2.038 4.963T11 18m0-3q-1.8 0-3.338-.962T5.25 11.474q-.125-.225-.125-.475t.125-.475q.875-1.6 2.413-2.562T11 7t3.325.975t2.4 2.55q.125.225.125.475t-.125.475q-.875 1.6-2.4 2.563T11 15m0-1.5q1.375 0 2.525-.663t1.8-1.837q-.65-1.15-1.8-1.825T11 8.5q-1.4 0-2.55.675T6.65 11q.65 1.175 1.8 1.838T11 13.5m0-1q.625 0 1.063-.425T12.5 11q0-.625-.437-1.062T11 9.5q-.65 0-1.075.438T9.5 11q0 .65.425 1.075T11 12.5m0 7.5q-1.875 0-3.512-.712t-2.85-1.925t-1.926-2.85T2 11q0-1.85.713-3.488T4.637 4.65t2.85-1.938T11 2q1.85 0 3.488.713T17.35 4.65t1.938 2.863T20 11q0 1.6-.525 3.025t-1.45 2.6L21.3 19.9q.3.3.288.7t-.313.7q-.3.275-.7.275t-.7-.275L16.6 18.05q-1.175.925-2.6 1.438T11 20"/></svg>

Library & related icons

About Material Symbols

Google's newest icon format built on variable font technology. 18,500+ icons with four adjustable axes: Weight, Fill, Grade, and Optical Size — all from a single file.

  • Total icons: 18,547+
  • Style: variable
  • License: Apache 2.0
  • npm package: @material-symbols/svg-400
Browse all 18,547 Material Symbols icons →

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Frequently asked questions

What is the Mystery Outline Rounded icon?

The Mystery Outline Rounded icon is a outline-style SVG icon from the Material Symbols library, categorized under Interface. It is designed for use in general-purpose product UIs, design systems, component libraries, web applications, and marketing sites. On IconStash you can preview it, customize its color and size, and export it in SVG, PNG, JSX, or CSS formats directly from your browser.

Is the Mystery Outline Rounded icon free to use?

Yes. Material Symbols is licensed under Apache 2.0, making it free for personal and commercial use. This means you can freely use the Mystery Outline Rounded icon in personal, commercial, and open-source projects. IconStash provides SVG and PNG access at no cost with no login required.

How do I use the Mystery Outline Rounded icon in React?

Install the package with `npm install @material-symbols/svg-400`, then import the component into your React file. IconStash's detail panel shows you the exact npm command, import statement, and JSX usage snippet for every icon — just click the Code tab and copy with one click.

What is the Material Symbols icon library?

Google's newest icon format built on variable font technology. 18,500+ icons with four adjustable axes: Weight, Fill, Grade, and Optical Size — all from a single file. It contains 18,547+ icons. IconStash indexes the complete Material Symbols collection alongside 27 other open-source libraries — 134,701 icons total — in a single unified search interface.

Can I download the Mystery Outline Rounded icon as a PNG?

Yes. Open the Mystery Outline Rounded icon in IconStash, set your desired pixel size (16px to 512px) in the detail panel, and click Download PNG. You can also export a multi-resolution ZIP pack containing 16, 24, 32, 48, 64, 128, 256, and 512px PNGs with a single click.

What does the outline icon style mean?

An icon in outline style uses stroked lines with no fill — clean, legible, and versatile at any size. This style is best suited for app navigation bars, toolbar buttons, form labels, and UI controls where clarity at 16–24px is critical. The Material Symbols Mystery Outline Rounded icon follows this visual convention throughout the Material Symbols design system.

Can I change the Mystery Outline Rounded icon's color and size before downloading?

Yes. In IconStash's editor panel, choose from six color presets (blue, slate, green, purple, red, teal) or enter a custom hex value. Drag the size slider (16–256px) or type an exact pixel value up to 512px. Changes apply instantly to the SVG preview, the PNG output, and the copied code.