chore: migrate icons from Material Symbols to Heroicons

Replaces @material-symbols/svg-400 (5.5 MB) with heroicons (488 KB) — an
11x reduction in icon asset size. Heroicons uses a single consistent
distribution format (24px solid SVGs, fill="currentColor") eliminating
the need for the separate utils/svg.html partial, the icon-svg-stroke CSS
utility, and the dual-path resolution logic in icon.html.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>

Author: dvdksn

assets/css/utilities.css

@@ -54,15 +54,6 @@
     fill: currentColor;
   }
 }
-@utility icon-svg-stroke {
-  svg {
-    font-size: 24px;
-    width: 1em;
-    height: 1em;
-    display: inline-block;
-    stroke: currentColor;
-  }
-}
 
 @utility icon-xs {
   svg {

assets/icons/search.svg

@@ -4,30 +4,30 @@ keywords: Docker, get started
 description: Get started with Docker
 layout: wide
 params:
-  icon: download
+  icon: arrow-down-tray
   notoc: true
   get-started:
   - title: Get Docker
     description: Choose the best installation path for your setup.
     link: /get-started/get-docker/
-    icon: download
+    icon: arrow-down-tray
   - title: What is Docker?
     description: Learn about the Docker platform.
     link: /get-started/docker-overview/
-    icon: summarize
+    icon: document-text
   get-started2:
   - title: Introduction
     description: Get started with the basics and the benefits of containerizing your applications.
     link: /get-started/introduction/
-    icon: rocket
+    icon: rocket-launch
   - title: Docker concepts
     description: Gain a better understanding of foundational Docker concepts.
     link: /get-started/docker-concepts/the-basics/what-is-a-container/
-    icon: foundation
+    icon: home
   - title: Docker workshop
     description: Get guided through a 45-minute workshop to learn about Docker.
     link: /get-started/workshop/
-    icon: desk
+    icon: computer-desktop
 aliases:
   - /engine/get-started/
   - /engine/tutorials/usingdocker/

assets/icons/sparkle.svg

@@ -3,7 +3,7 @@ title: Docker guides
 linkTitle: Guides
 description: Explore the Docker guides
 params:
-  icon: developer_guide
+  icon: book-open
 layout: landing
 aliases:
   - /guides/language/

assets/icons/system.svg

@@ -6,7 +6,7 @@ keywords: docker, docs, manuals, products, user guides, how-to
 url: /manuals/
 layout: wide
 params:
-  icon: description
+  icon: document-text
   sidebar:
     groups:
       - AI and agents
@@ -18,15 +18,15 @@ params:
   ai-and-agents:
   - title: Docker Sandboxes
     description: Run AI coding agents in isolated environments.
-    icon: terminal
+    icon: command-line
     link: /ai/sandboxes/
   - title: MCP Catalog and Toolkit
     description: Augment your AI workflow with MCP servers.
     icon: /icons/toolkit.svg
     link: /ai/mcp-catalog-and-toolkit/
   - title: Gordon
     description: Streamline your workflow and get the most out of the Docker ecosystem with your personal AI assistant.
-    icon: note_add
+    icon: document-plus
     link: /ai/gordon/
   - title: Docker Model Runner
     description: View and manage your local models.
@@ -55,11 +55,11 @@ params:
     link: /testcontainers/
   - title: Docker Build
     description: Build and ship any application anywhere.
-    icon: build
+    icon: wrench-screwdriver
     link: /build/
   - title: Docker Engine
     description: The industry-leading container runtime.
-    icon: developer_board
+    icon: cpu-chip
     link: /engine/
   - title: Docker Compose
     description: Define and run multi-container applications.
@@ -68,7 +68,7 @@ params:
   supply-chain-security:
   - title: Docker Hub
     description: Discover, share, and integrate container images.
-    icon: hub
+    icon: globe-alt
     link: /docker-hub/
   - title: Docker Hardened Images
     description: Secure, minimal images for trusted software delivery.
@@ -81,28 +81,28 @@ params:
   platform:
   - title: Administration
     description: Centralized observability for companies and organizations.
-    icon: admin_panel_settings
+    icon: shield-check
     link: /admin/
   - title: Billing
     description: Manage billing and payment methods.
-    icon: payments
+    icon: credit-card
     link: /billing/
   - title: Accounts
     description: Manage your Docker account.
-    icon: account_circle
+    icon: user-circle
     link: /accounts/
   - title: Security
     description: Security guardrails for both administrators and developers.
-    icon: lock
+    icon: lock-closed
     link: /security/
   - title: Subscription
     description: Commercial use licenses for Docker products.
-    icon: card_membership
+    icon: credit-card
     link: /subscription/
   enterprise:
   - title: Deploy Docker Desktop
     description: Deploy Docker Desktop at scale within your company
-    icon: download
+    icon: arrow-down-tray
     link: /enterprise/enterprise-deployment/
 ---
 

assets/theme/icons/edit.svg

@@ -9,27 +9,27 @@ params:
 grid:
 - title: Create a Docker ID
   description: Get started with Docker and create an account.
-  icon: fingerprint
+  icon: finger-print
   link: /accounts/create-account/
 - title: Manage account
   description: Learn how to manage the settings for your account.
-  icon: manage_accounts
+  icon: cog
   link: /accounts/manage-account/
 - title: Personal access tokens
   description: Learn how to create and manage access tokens for your account.
-  icon: password
+  icon: lock-closed
   link: /security/access-tokens/
 - title: Set up two-factor authentication
   description: Add an extra layer of authentication to your Docker account.
   link: /security/2fa/
-  icon: mobile_lock_portrait
+  icon: device-phone-mobile
 - title: Deactivate an account
   description: Learn how to deactivate a Docker user account.
   link: /accounts/deactivate-user-account/
-  icon: disabled_by_default
+  icon: no-symbol
 - title: Account FAQ
   description: Explore frequently asked questions about Docker accounts.
-  icon: help
+  icon: question-mark-circle
   link: /accounts/general-faqs/
 ---