integrate-modus-icons

name	integrate-modus-icons
description	Help with correct Modus icon usage patterns including naming conventions, sizing, and accessibility

Integrate Modus Icons

Help with correct Modus icon usage patterns including naming conventions, sizing, and accessibility.

When to Use

Use this skill when:

• Adding icons to components or buttons
• Choosing the right icon name
• Sizing icons correctly
• Ensuring proper accessibility
• Integrating icons with Modus components

Icon Naming Convention

CRITICAL: Modus icons use UNDERSCORES (_), not hyphens (-)

Correct Icon Names

// ✅ CORRECT: Use underscores
<i className="modus-icons">save_disk</i>
<i className="modus-icons">arrow_left</i>
<i className="modus-icons">add_circle</i>
<i className="modus-icons">user_permissions</i>

// ❌ WRONG: Don't use hyphens
<i className="modus-icons">save-disk</i>
<i className="modus-icons">arrow-left</i>

Usage Patterns

Pattern 1: Using ModusIcon Component

import ModusIcon from "./components/ModusIcon";

// Informational icon (announced by screen reader)
<ModusIcon
  name="user_add"
  size="lg"
  decorative={false}
  ariaLabel="Add user"
/>

// Decorative icon (not announced)
<ModusIcon
  name="chevron_right"
  size="md"
  decorative={true}
/>

Reference: src/components/ModusIcon.tsx

Pattern 2: Using Bare <i> Element

// Decorative icon
<i className="modus-icons text-lg" aria-hidden="true">
  user_add
</i>

// Informational icon
<i
  className="modus-icons text-md"
  role="img"
  aria-label="Settings"
>
  settings
</i>

Pattern 3: Icons in Buttons

import ModusButton from "./components/ModusButton";

// Icon with text (left position)
<ModusButton
  icon="save_disk"
  iconPosition="left"
>
  Save File
</ModusButton>

// Icon with text (right position)
<ModusButton
  icon="download"
  iconPosition="right"
>
  Download
</ModusButton>

// Icon only (requires aria-label)
<ModusButton
  icon="settings"
  iconPosition="only"
  ariaLabel="Open settings"
/>

Reference: src/components/ModusButton.tsx:149-206 for icon rendering logic

Icon Sizing

Tailwind Text Classes

Use Tailwind text utilities for sizing:

// Small icon
<i className="modus-icons text-sm">info</i>

// Base icon (Modus default 14px)
<i className="modus-icons text-base">warning</i>

// Large icon (16px)
<i className="modus-icons text-lg">error</i>

// Extra large icon (18px)
<i className="modus-icons text-xl">success</i>

Modus Font Size Scale

Tailwind Class	Size	Usage
text-2xs	8px	Micro icons, badges
text-xs	10px	Small labels, captions
text-sm	12px	Secondary icons
text-base	14px	Modus default size
text-lg	16px	Body text icons
text-xl	18px	Large icons
text-2xl	20px	Prominent icons
text-3xl	24px	Display icons

Button Icon Sizing

Icons in buttons automatically scale based on button size:

// Icons scale with button size
<ModusButton size="xs" icon="star" iconPosition="left">Extra Small</ModusButton>
<ModusButton size="sm" icon="star" iconPosition="left">Small</ModusButton>
<ModusButton size="md" icon="star" iconPosition="left">Medium</ModusButton>
<ModusButton size="lg" icon="star" iconPosition="left">Large</ModusButton>

// Icon-only buttons use larger icons
<ModusButton size="md" icon="settings" iconPosition="only" ariaLabel="Settings" />

Automatic sizing rules:

• Icons with text: Scale with button size (text-xs for xs, text-lg for md)
• Icon-only buttons: Get larger icons (text-sm for xs, text-xl for md)

Reference: src/components/ModusButton.tsx:98-134

Icon Colors

Use design system colors:

// Primary color
<i className="modus-icons text-primary">info</i>

// Success color
<i className="modus-icons text-success">check_circle</i>

// Warning color
<i className="modus-icons text-warning">warning</i>

// Error color
<i className="modus-icons text-error">error</i>

// Muted text
<i className="modus-icons text-muted-foreground">help</i>

Accessibility

Decorative Icons

For purely decorative icons, use aria-hidden="true":

<button>
  <i className="modus-icons mr-2" aria-hidden="true">save_disk</i>
  Save Document
</button>

Informational Icons

For icons that convey meaning, provide proper labels:

// Using role="img" and aria-label
<i className="modus-icons" role="img" aria-label="Warning">
  warning
</i>

// Using aria-label on parent element
<button aria-label="Delete item">
  <i className="modus-icons" aria-hidden="true">delete</i>
</button>

Icon-Only Buttons

Always provide accessible labels:

<ModusButton
  icon="settings"
  iconPosition="only"
  ariaLabel="Open settings menu"
/>

Common Icon Names

Navigation & UI

• arrow_left, arrow_right, arrow_up, arrow_down
• chevron_left, chevron_right
• menu, close, home, settings, search

Actions & Operations

• add, remove, edit_combination, delete
• save_disk, download, upload, copy_content

Status & Feedback

• check, check_circle, error, warning, alert, info, help

Files & Documents

• file, file_upload, file_download
• folder_open, folder_closed, document, image, video

User & Account

• person, people_group, user_account, user_add
• key, lock, lock_open

Validating Icon Names

Check icon names against the complete list in:

• .cursor/rules/modus-icon-names.mdc - Complete list of 700+ valid icon names

Common mistakes:

• Using hyphens instead of underscores
• Wrong capitalization (all lowercase)
• Typos in icon names

Testing Icons

Visual Verification

Icons should display as glyphs, not text. If you see text like "save_disk" instead of an icon:

1. Check font CSS is loaded in index.html
2. Verify icon name uses underscores
3. Confirm modus-icons class is applied
4. Check network tab for font file download

Browser DevTools Check

// Check if font is loaded
const testElement = document.createElement('span');
testElement.className = 'modus-icons';
document.body.appendChild(testElement);
const fontFamily = window.getComputedStyle(testElement).fontFamily;
console.log('Font loaded:', fontFamily.includes('modus-icons'));
document.body.removeChild(testElement);

Common Mistakes

1. Wrong naming: Using hyphens instead of underscores
2. Wrong sizing: Using pixel values instead of Tailwind classes
3. Missing accessibility: Not providing aria-label for informational icons
4. Wrong icon name: Not checking against valid icon list
5. Font not loaded: Missing CSS import for Modus icons

Related Files

• src/components/ModusIcon.tsx - Icon component wrapper
• src/components/ModusButton.tsx - Button icon integration
• .cursor/rules/modus-icon-names.mdc - Complete icon name list
• .cursor/rules/modus-icons-react.mdc - Detailed icon documentation