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

Number Nine

Number Nine Square

Number Nine Circle

Rectangle Split Nine

Looks Nine

Time Clock Nine To Five

Timer Nine

Time Nine

<p>Plump is 100% cute. Inspired by animated cartoons, with subtle curves and chunky shapes. The Line variant features outlines of friendly icons with expressive details.</p>

Plump Line

**Summary**: The warmest line icon in the catalog — 3px stroke, fully rounded caps, exaggerated curves on a 48px grid, producing a bold cartoon-adjacent warmth that is visible and welcoming at any display size. The 3px stroke ensures the icons are never invisible even at the smallest deployment sizes above 20px. The tone signals bold friendliness: "we are bold and friendly." Best for primary navigation in consumer apps, casual game UI, marketing pages for consumer brands, and any product where the icon set is a personality statement.

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

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## Fit & Recommendation

### Primary use cases

- Primary navigation in consumer apps where icons should feel welcoming and energetic
- Mobile interfaces where bold stroke ensures legibility across screen quality
- Casual game UI where the cartoon weight matches the product register
- Marketing pages for consumer brands where icons hold their own at large sizes
- Products where the icon set is a brand personality statement, not invisible infrastructure

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## Brand & Cultural Identity

### What it communicates

> "We are bold and friendly."

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## Visual & Technical Specs

### Visual properties

| Property | Value |
|----------|-------|
| Stroke weight | 3px |
| Fill | None |
| Corner treatment | Fully rounded caps, exaggerated rounded joins |
| Color | Monochrome |

### Emotional Scores

Plump Line is among the warmest sub-styles in the catalog — exaggerated rounded caps, 3px stroke, and inflated paths create the warmest line icon language in the catalog. It is one of the more human-feeling sub-styles in the catalog on softness — the 3px weight is heavy but the curvature absorbs aggression, reading as bold rather than hard. It is among the friendliest sub-styles in the catalog — the cartoon-adjacent construction is the most overtly friendly icon style in the catalog. It is among the most playful sub-styles in the catalog — inflated buoyant shapes actively signal play; no reading of seriousness is possible. On its human↔mechanical character, it is among the most human-feeling sub-styles in the catalog — organic curves and exaggerated roundness communicate body and hand, not grid and system.

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## Pairing & Compatibility

### Typography pairing

- **Primary**: Nunito ExtraBold — rounded terminals, explicit warmth, weight matches 3px icon stroke at heading sizes
- **Alternative**: Poppins SemiBold — geometric warmth, rounded, visible personality
- **Display**: Fredoka — round letterforms with direct cartoon DNA match
- **Body**: Nunito Regular or DM Sans
- **Avoid**: IBM Plex Sans, Neue Haas Grotesk, any cold geometric grotesque


<p>100% cute and playful. Features subtle curves and chunky shapes inspired by animated cartoons. Recommended for friendly brands.</p>

Friendly icons

Mathematics

Number Nine Square icon - Plump Line Set

Download Number Nine Square SVG vector or transparent PNG icon in Line, Stroke style(s) for Sketch and Figma. It belongs to Plump Line vectors SVG collection.