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

Outlined Line - Streamline Material Free

Bubble

UI Actions

Rounded Line - Streamline Material Free

Sharp Line - Streamline Material

Outlined Line - Streamline Material

Rounded Line - Streamline Material

Sharp Line - Streamline Material Free

Bubble Chart

Business Payments

Micro Solid

Chat Bubble Square

Chat Bubble

Communication

Cyber Duotone - Free

Bubble Chat 2

Mail Chat Smiley

Ultimate Light

Bubble Tea 4

Teas

Flex Duo

Chart Bubble

Graphs

Flex Neon

Ultimate Bold

Bubble Tea 3

Core Flat

Core Gradient

Sharp Gradient

Chat Bubble Oval

Outlined Fill - Streamline Material Free

Bubble Chart Fill

Messages Bubble Remove

Messages Speech Bubbles

Messages Bubble Disable

Chat Bubble Square Warning

Ultimate Duotone

Messages Bubble

Chat Bubble Fill

Micro Line

Chat Bubble Text Square

Plump Solid

Core Solid

Chat Bubble Notes

Stickies Colors

Bubble Conversation

Work Office

Plump Line

Chat Bubble Answer

Plump Remix

Chat Bubble Alt

Flex Line

Flex Line - Free

Recording Tape Bubble Circle

Chat Bubble Oval Notification

Messages Bubble Remove 1

Freehand Duotone - Free

Messages Bubble Image

Email Messages

Messages Bubble Edit

Ultimate Colors - Free

Messages Chat Smileys

Messages Bubble Check 1

Messages Bubble Question

Messages Bubble Typing

Flex Remix

Ultimate Regular

Chat Bubble Square Smiley 1

Ultimate Colors

Messages Bubble Square

Messages Bubbles

<p>Core is the Helvetica of icons. The Solid variant provides filled shapes for a bolder, more impactful appearance while maintaining legibility at small sizes.</p>

**Summary**: Core's high-legibility sub-style — opaque fills on rounded 14px-grid silhouettes, the most reliable Core option for active states, dense UI, and small-size contexts. One of the harder sub-styles in the catalog, while rounded silhouettes prevent the full coldness of Sharp Solid. The tone signals clarity on demand: "we are clear and direct when needed." Best for active and selected states paired with Core Line, tab bars, dense data tables, and any context requiring reliable legibility at 12–16px within a neutral design system.

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

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## Fit & Recommendation

### Primary use cases

- Tab bars and primary navigation in mobile apps
- Compact icon-heavy UI where 1px line icons would disappear
- Feature highlights, badges, and status indicators
- Dense data tables where actions must be visually distinct
- Dense UI at 12–16px — the most reliable Core sub-style at minimum size
- Active and selected states paired with Core Line for inactive

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## Brand & Cultural Identity

### What it communicates

> "We are clear and direct when needed."

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## Visual & Technical Specs

### Visual properties

| Property | Value |
|----------|-------|
| Stroke weight | None |
| Fill | Opaque fill with transparent cutouts — background visible through cutout areas |
| Corner treatment | Rounded silhouettes — same rounded language as Core Line |
| Color | Monochrome |

### Emotional Scores

Core Solid is near neutral on warmth leaning slightly cool — solid black fills are authoritative while rounded silhouettes prevent the full coldness of geometric solid families. It is one of the harder sub-styles in the catalog, as the opaque fill adds substantial visual weight. It is somewhat cold on both friendliness and playfulness, with bold fills reading as direct and assertive while rounded shapes prevent full formality. On its human↔mechanical character, it sits near neutral leaning slightly mechanical — rounded silhouettes retain some human quality while the density of fill reads as systematic.

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## Pairing & Compatibility

### Typography pairing

- **Primary**: DM Sans Medium/SemiBold — weight-compatible with solid fills without going to display-level heaviness
- **Alternative**: Plus Jakarta Sans — humanist warmth at medium weight, appropriate for the slightly bolder Solid register
- **Body**: Inter Regular — the standard neutral body pairing
- **Avoid**: Ultra-light or hairline fonts — the visual weight imbalance is too extreme


<p>The Helvetica of icons. Core is stripped to essential form with generous spacing. It's a timeless workhorse for interface design.</p>

Minimal icons

Ai Chat Robot

Robot

Ai Chat Robot icon - Core Solid Set

Download Ai Chat Robot SVG vector or transparent PNG icon in Solid, Minimal, Glyph, Wireframe style(s) for Sketch and Figma. It belongs to Core Solid vectors SVG collection.