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

Edit

Photo Image

Sharp Line - Streamline Material Free

Block – Free

Content

Rounded Line - Streamline Material Free

Outlined Line - Streamline Material

Sharp Line - Streamline Material

Rounded Line - Streamline Material

Edit Pdf

Text Formatting

Rounded Fill - Streamline Material

Edit Fill

Outlined Fill - Streamline Material

Sharp Line

Edit Crop Transform Rotate

Outlined Fill - Streamline Material Free

Edit Square

Common Actions

Person Edit

Nova Line

Grid Edit

Layer Grid

Edit Note

Sharp Neon - Free

Edit PDF

Edit Exposure 1

Sharp Flat - Free

Plump Flat

Edit Exposure 2

Sharp Solid

Files Folders

Sharp Flat

Core Remix

Folder Edit

Ultimate Regular

Server Edit

Servers

Sharp Neon

Road Edit

Transportation

Browser Edit

Browser

Plump Solid

File Edit

Plump Line

Core Flat

Sharp Remix

Nova Solid

Wifi Network Edit

Wifi

Ultimate Light

Calendar Edit

Date Calendar

Ultimate Colors

Monitor Edit

Desktop Actions

Plump Gradient

Box Edit

Business Payments

Assignment Edit

Core Solid

Sharp Gradient

Calendar

Folders

Freehand Duotone

Edit Pencil

Clock Edit

Time FIles

Edit Pencil 1

Edit Pencil 2

<p>Core is timeless, like the Helvetica font or The Beatles. With its minimalist design and neutrality, it can adapt to any layout.&nbsp;The Duo style is perfect for projects that require differentiation between actions, using color to convey meaning effectively. It also allows you to customize the line thickness.&nbsp;All Core Duo icons are designed on a 14px grid with a 1px default stroke and two customizable colors.</p>

Core Duo

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

### **one sentence positioning**

Neutral UI infrastructure on a 14px grid, designed to disappear into the interface and scale consistently across the entire product.

---

### **what it signals**

Clarity, modern UI logic, disciplined neutrality, durability, system thinking.

---

### **best fit when**

- a neutral baseline that holds long-term without feeling dated is the goal
- the interface is dense and requires minimal, consistent icons
- standardising across multiple product teams with a modern shared foundation

---

### **avoid when**

- strong warmth or playful personality is a brand requirement
- brutalist technical signalling is the intent
- icons need to act as expressive brand elements rather than functional UI chrome

---

### **core visual rules**

- geometry: controlled rectilinear with rounded softening — frequent 45° angles, disciplined proportions
- terminals: rounded — consistent rounded caps on all line variants
- corner language: rounded with 45° diagonal discipline throughout
- curves: mathematical arcs, predictable construction across all categories
- detail density: low
- silhouette: compact, stable, engineered for dense UI comfort
- emotional tension: very low — intentional neutrality; the 14px grid forces simplification

---

### **variants and hierarchy**

Core Line

- Universal UI navigation; invisible infrastructure that lets content and layout lead

Core Solid

- Dense UI contexts, active and selected states, small-size legibility emphasis

Core Remix

- Outlined + filled mix; graphic differentiation without colour for marketing and feature sections

Core Pop

- Multi-color navy + saturated palette; consumer onboarding and feature promotions

Core Duo

- Two-color blue system; polished SaaS products wanting colour-based hierarchy

Core Neon

- Magenta + navy; vivid colour identity and dark-adjacent interface contexts

Core Flat

- Two-tone blue silhouettes; onboarding flows and illustrative explainer content

Core Gradient

- Full-spectrum fills; landing pages and high-production marketing at display sizes

**line/solid pairing rule** Core Line for default and inactive states; Core Solid for selected, active, and primary emphasis. The 14px compact grid ensures both hold legibility at the same size without requiring a size increase for Solid.

---

### **small-size behavior**

- recommended minimum size: 12px
- best range: 12–28px
- notes: The 14px grid produces icons that are naturally compact — internal detail is already minimal, so the family holds at smaller sizes better than 24px-grid alternatives.

---

### **motion behavior**

- strengths: stable scaling, low visual noise, predictable morph paths between Line and Solid states
- ideal motion contexts: state transitions (inactive to active), subtle hover feedback, compact loading indicators, filter and chip animations in dense layouts

---

### **typography pairing**

Strong matches for product UI

- Inter, IBM Plex Sans, SF Pro, Helvetica Now, Neue Haas Grotesk

More branded but compatible

- Söhne, Suisse Int'l, Graphik, DM Sans, Outfit

**type alignment rule** Pair with stable, neutral, UI-optimised typography. Core is the "Helvetica of icon sets" — the type should share that same calm, system-first philosophy. Disciplined, quiet, and built to serve the content.

**typefaces to avoid** Display fonts with strong visual personality (Syne, Playfair Display), hand-drawn or script fonts — the contrast between expressive type and deliberately invisible icons creates incoherence. The type should not be louder than the icons.

---

### **mixing guidance**

Recommended with

- Micro — Core handles primary UI while Micro handles the density layer (tables, inline actions)
- Ultimate — nearly identical visual DNA; separate by component type or product section

Possible with normalization

- Nova — compatible rounded geometry; keep Nova in navigation and Core in secondary controls
- Streamline 3.0 — similar rounded language; isolate to separate product surfaces

Avoid mixing with

- Sharp — geometry contradiction; angular vs rounded within the same UI chrome is unresolvable
- Plump — extreme weight and proportion contrast
- Freehand — hand-drawn organics conflict with the engineered precision of Core

**normalization rules when mixing**

- keep Core as the primary UI layer across navigation, toolbars, and form controls
- reserve expressive families for illustrations, onboarding surfaces, or marketing pages
- never mix Core with a family of a different corner language within the same component

---

### **primary use cases**

- SaaS dashboards and productivity tool navigation
- developer tools and dense admin panels
- fintech and operations software
- enterprise and B2B applications
- dense mobile interfaces and compact component libraries
- internal tooling and analytics platforms
- settings and configuration UIs

---

### **secondary use cases**

- clean consumer apps where neutrality is a feature
- content platforms with complex navigation
- monitoring and real-time analytics interfaces

Minimal icons

Edit Transform Width

Edit Transform Width icon - Core Duo Set

Download Edit Transform Width SVG vector or transparent PNG icon in Duo, Minimal, Stroke, Filled, Wireframe style(s) for Sketch and Figma. It belongs to Core Duo vectors SVG collection.