Interface Essential

Business

Images Photography

Money Shopping

Programming

Computer Devices

Phone

Mail

Map Travel

Food Drink

Nature Ecology

Entertainment

Shipping

Culture

Health

Work Education

Artificial Intelligence

Arrows

Streamline 3.0

Ultimate

Core

Flex

Sharp

Plump

Micro

Freehand

Streamline Material

Nova

Cyber

Streamline Vault

Logos

Pixel

Google Material

Tabler

Remix

Feather

Iconoir

Carbon

Solar

Lucide

Brand Logos

Bootstrap

Atlas

Unicons

Ionic Icons

Phosphor

MingCute

Font Awesome

Majesticons

Mynaui

Radix

Heroicons

Flagpack

Sharp Gradient

Package

Stickies Colors

Shopping Shipping

Sharp Line - Streamline Material

Package 2

Maps

Outlined Line - Streamline Material

Sharp Duo

Sharp Remix

Core Pop

Plump Line

Rounded Line - Streamline Material

Flex Flat

Core Remix

Plump Gradient

Core Neon

Core Flat

Flex Duo

Sharp Flat

Core Gradient

Flex Solid

Plump Solid

Flex Line

Plump Remix

Plump Flat

Flex Remix

Sharp Solid

Core Duo

Core Line

Sharp Line

Core Solid

Flex Neon

Flex Gradient

Flex Pop

Plump Neon

Sharp Neon

Sharp Pop

Plump Duo

Plump Pop

Cyber Line

Logistics Shipping Delivery

Cyber Duotone

Stickies Duo

Package Dimension

Package Mobile

Package Location

Outlined Fill - Streamline Material

Package 2 Fill

Ultimate Regular

Return Package

Shipment

Ultimate Colors

Shipment Package

Ultimate Light

Game Bundle Package 2 Game Game Bundle Package

Video Games Control

Package Favorite Star

<p>Flex is all about the curves. Its smooth curves brings fluidity and dynamism to your designs with a modern appeal.&nbsp;The Neon style is especially effective in complex environments where&nbsp;quick recognition and hierarchy&nbsp;are essential. It also allows you to customize the line thickness.&nbsp;All Flex Neon icons are designed on a 14px grid with a 1px default stroke and two customizable line colors.</p>

**Summary**: Flex's vivid dark-adjacent sub-style — 1px organic line in magenta and dark navy, delivering neon energy with a refined, delicate quality that thick-stroke neon sets cannot achieve. The thin organic stroke is delicate enough that the neon palette reads as high-design rather than aggressive, making this the most refined neon sub-style available across all families. The tone signals vivid restraint: "we are vivid but not aggressive." Best for creative tools, music and audio platforms, and dark-UI products that want neon energy without the visual aggression of thick-stroke neon — requires a design system that can absorb electric colour without the palette overwhelming the layout.

**Last updated**: 2026-04-23

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## Fit & Recommendation

### Primary use cases

- Creative tools and design-adjacent products with vivid brand colour
- Dark-UI products that want neon energy without the aggressive quality of thick-stroke neon sets
- Music, audio, and creative platform products

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## Brand & Cultural Identity

### What it communicates

> "We are vivid but not aggressive."

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## Visual & Technical Specs

### Visual properties

| Property | Value |
|----------|-------|
| Stroke weight | 1px |
| Fill | None (line only) |
| Corner treatment | Smooth fluid curves |
| Color | Magenta/pink primary + dark navy |

### Emotional Scores

Flex Neon is somewhat mechanical on warmth — magenta and navy is an electric, cool palette, though the organic 1px stroke softens the coldness noticeably. It is among the softest sub-styles in the catalog — the 1px organic curves in neon colours remain visually soft; the colour is vivid but the line is delicate. It is somewhat friendly — the neon palette is intense, but the delicate organic curves create a more refined neon register. It is near neutral on playfulness — high colour energy suggests play but thin organic lines suggest refinement, producing a genuine midpoint. On its human↔mechanical character, it is near neutral — the neon colour adds a machine register while organic curves soften this considerably.

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## Pairing & Compatibility

### Typography pairing

- **Primary**: Space Grotesk — geometric with subtle personality, handles the neon palette; mild irregularity echoes Flex's organic variation
- **Alternative**: Plus Jakarta Sans Medium — humanist warmth on dark backgrounds
- **Body**: Inter Medium white on dark
- **Avoid**: Cartoon-rounded display (Nunito, Fredoka) — too casual for Flex Neon's refined register


<p>Flex is a fluid icon family inspired by nature’s curves. It favors smooth, flowing forms. More organic than Core and subtler than the chunky Plump. Read about the <a href="https://blog.streamlinehq.com/flex/" rel="noopener noreferrer" target="_blank">design process</a>.</p>

Fluid icons

Package Dimension icon - Flex Neon Set

Download Package Dimension SVG vector or transparent PNG icon in Neon, Stroke style(s) for Sketch and Figma. It belongs to Flex Neon vectors SVG collection.