Enhance image rendering in custom-section and image snippet - #75

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Open

Enhance image rendering in custom-section and image snippet#75
octipus wants to merge 1 commit into
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octipus:main

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@octipus

@octipusoctipus commented Jan 23, 2026

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Improve image snippet with responsive image best practices

Summary

This PR enhances the snippets/image.liquid snippet to follow Shopify's performance best practices for responsive images, based on recommendations from:

Changes

New Features

  1. Responsive Image Support (srcset and sizes)

    • Added widths parameter to generate multiple image sizes for srcset
    • Added sizes parameter to provide responsive display hints to the browser
    • Automatically defaults to base width and 2x version if widths is not provided
  2. Loading Strategy Control

    • Added loading parameter (defaults to 'lazy' for below-fold images)
    • Can be set to 'eager' for LCP images to improve Largest Contentful Paint
  3. Fetch Priority Support

    • Added optional fetchpriority parameter
    • Use 'high' for LCP images to prioritize their loading
  4. Picture Tag for Mobile DPR Capping

    • Added optional use_picture parameter
    • Prevents oversized images on high-DPR mobile devices (3x+) by capping at 2x
    • Configurable mobile_breakpoint parameter (default: 800px)
  5. CSS Updates

    • Added styles to support <picture> tag structure
    • Maintains existing image wrapper styles

Backward Compatibility

All existing usage patterns continue to work without any changes. All new parameters are optional with sensible defaults.

Usage Examples

{% comment %} Basic usage (backward compatible) {% endcomment %}
{% render'image', image:product.featured_image %}
{% comment %} With responsive srcset {% endcomment %}
{% render'image',
image:product.featured_image,
widths:'300, 600, 900',
sizes:'(min-width: 800px) 600px, 100vw'
%}
{% comment %} LCP image with high priority {% endcomment %}
{% render'image',
image:product.featured_image,
loading:'eager',
fetchpriority:'high',
widths:'600, 1200'
%}
{% comment %} With picture tag for mobile DPR capping {% endcomment %}
{% render'image',
image:collection.featured_image,
use_picture:true,
widths:'300, 600, 1200',
sizes:'(min-width: 800px) 600px, 100vw'
%}

Performance Improvements

Testing with a 2000×1000px image demonstrates significant performance gains:

MetricBeforeAfterImprovement
File Size680 KB234 KB66% reduction
Load Time141 ms55 ms61% faster

These improvements come from:

  • Responsive srcset delivering appropriately sized images
  • Automatic format optimization (AVIF/WebP) via Shopify's CDN
  • Proper sizes attribute preventing oversized downloads

Benefits

  • Improved Performance: Responsive images reduce bandwidth usage and improve load times
  • Better LCP: loading: 'eager' and fetchpriority: 'high' optimize LCP images
  • Mobile Optimization: Picture tag prevents oversized images on high-DPR mobile devices
  • Developer Experience: Comprehensive documentation and examples in LiquidDoc comments

Testing

  • ✅ Verified backward compatibility with existing usage in sections/product.liquid, sections/collection.liquid, sections/cart.liquid, and others
  • ✅ No linter errors
  • ✅ All existing parameters (image, url, class, width, height, crop) work as before

- Updated custom-section.liquid to utilize the new image rendering method with responsive attributes.
- Modified image.liquid to include additional parameters for improved accessibility and performance, such as alt text, loading strategy, and srcset handling.
- Implemented picture tag support for better mobile image optimization and added default values for loading and widths.
These changes improve the flexibility and responsiveness of image handling in the theme.
@octipus

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2 participants

@octipus@nakryhh
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
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Enhance image rendering in custom-section and image snippet - #75

Open
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main
Open

Enhance image rendering in custom-section and image snippet#75
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main

Conversation

@octipus

@octipusoctipus commented Jan 23, 2026

Copy link
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Improve image snippet with responsive image best practices

Summary

This PR enhances the snippets/image.liquid snippet to follow Shopify's performance best practices for responsive images, based on recommendations from:

Changes

New Features

  1. Responsive Image Support (srcset and sizes)

    • Added widths parameter to generate multiple image sizes for srcset
    • Added sizes parameter to provide responsive display hints to the browser
    • Automatically defaults to base width and 2x version if widths is not provided
  2. Loading Strategy Control

    • Added loading parameter (defaults to 'lazy' for below-fold images)
    • Can be set to 'eager' for LCP images to improve Largest Contentful Paint
  3. Fetch Priority Support

    • Added optional fetchpriority parameter
    • Use 'high' for LCP images to prioritize their loading
  4. Picture Tag for Mobile DPR Capping

    • Added optional use_picture parameter
    • Prevents oversized images on high-DPR mobile devices (3x+) by capping at 2x
    • Configurable mobile_breakpoint parameter (default: 800px)
  5. CSS Updates

    • Added styles to support <picture> tag structure
    • Maintains existing image wrapper styles

Backward Compatibility

All existing usage patterns continue to work without any changes. All new parameters are optional with sensible defaults.

Usage Examples

{% comment %} Basic usage (backward compatible) {% endcomment %}
{% render'image', image:product.featured_image %}
{% comment %} With responsive srcset {% endcomment %}
{% render'image',
image:product.featured_image,
widths:'300, 600, 900',
sizes:'(min-width: 800px) 600px, 100vw'
%}
{% comment %} LCP image with high priority {% endcomment %}
{% render'image',
image:product.featured_image,
loading:'eager',
fetchpriority:'high',
widths:'600, 1200'
%}
{% comment %} With picture tag for mobile DPR capping {% endcomment %}
{% render'image',
image:collection.featured_image,
use_picture:true,
widths:'300, 600, 1200',
sizes:'(min-width: 800px) 600px, 100vw'
%}

Performance Improvements

Testing with a 2000×1000px image demonstrates significant performance gains:

MetricBeforeAfterImprovement
File Size680 KB234 KB66% reduction
Load Time141 ms55 ms61% faster

These improvements come from:

  • Responsive srcset delivering appropriately sized images
  • Automatic format optimization (AVIF/WebP) via Shopify's CDN
  • Proper sizes attribute preventing oversized downloads

Benefits

  • Improved Performance: Responsive images reduce bandwidth usage and improve load times
  • Better LCP: loading: 'eager' and fetchpriority: 'high' optimize LCP images
  • Mobile Optimization: Picture tag prevents oversized images on high-DPR mobile devices
  • Developer Experience: Comprehensive documentation and examples in LiquidDoc comments

Testing

  • ✅ Verified backward compatibility with existing usage in sections/product.liquid, sections/collection.liquid, sections/cart.liquid, and others
  • ✅ No linter errors
  • ✅ All existing parameters (image, url, class, width, height, crop) work as before

- Updated custom-section.liquid to utilize the new image rendering method with responsive attributes.
- Modified image.liquid to include additional parameters for improved accessibility and performance, such as alt text, loading strategy, and srcset handling.
- Implemented picture tag support for better mobile image optimization and added default values for loading and widths.
These changes improve the flexibility and responsiveness of image handling in the theme.
@octipus

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I have signed the CLA!

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Successfully merging this pull request may close these issues.

2 participants

@octipus@nakryhh
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Enhance image rendering in custom-section and image snippet - #75

Open
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main
Open

Enhance image rendering in custom-section and image snippet#75
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main

Conversation

@octipus

@octipusoctipus commented Jan 23, 2026

Copy link
Copy Markdown

Improve image snippet with responsive image best practices

Summary

This PR enhances the snippets/image.liquid snippet to follow Shopify's performance best practices for responsive images, based on recommendations from:

Changes

New Features

  1. Responsive Image Support (srcset and sizes)

    • Added widths parameter to generate multiple image sizes for srcset
    • Added sizes parameter to provide responsive display hints to the browser
    • Automatically defaults to base width and 2x version if widths is not provided
  2. Loading Strategy Control

    • Added loading parameter (defaults to 'lazy' for below-fold images)
    • Can be set to 'eager' for LCP images to improve Largest Contentful Paint
  3. Fetch Priority Support

    • Added optional fetchpriority parameter
    • Use 'high' for LCP images to prioritize their loading
  4. Picture Tag for Mobile DPR Capping

    • Added optional use_picture parameter
    • Prevents oversized images on high-DPR mobile devices (3x+) by capping at 2x
    • Configurable mobile_breakpoint parameter (default: 800px)
  5. CSS Updates

    • Added styles to support <picture> tag structure
    • Maintains existing image wrapper styles

Backward Compatibility

All existing usage patterns continue to work without any changes. All new parameters are optional with sensible defaults.

Usage Examples

{% comment %} Basic usage (backward compatible) {% endcomment %}
{% render'image', image:product.featured_image %}
{% comment %} With responsive srcset {% endcomment %}
{% render'image',
image:product.featured_image,
widths:'300, 600, 900',
sizes:'(min-width: 800px) 600px, 100vw'
%}
{% comment %} LCP image with high priority {% endcomment %}
{% render'image',
image:product.featured_image,
loading:'eager',
fetchpriority:'high',
widths:'600, 1200'
%}
{% comment %} With picture tag for mobile DPR capping {% endcomment %}
{% render'image',
image:collection.featured_image,
use_picture:true,
widths:'300, 600, 1200',
sizes:'(min-width: 800px) 600px, 100vw'
%}

Performance Improvements

Testing with a 2000×1000px image demonstrates significant performance gains:

MetricBeforeAfterImprovement
File Size680 KB234 KB66% reduction
Load Time141 ms55 ms61% faster

These improvements come from:

  • Responsive srcset delivering appropriately sized images
  • Automatic format optimization (AVIF/WebP) via Shopify's CDN
  • Proper sizes attribute preventing oversized downloads

Benefits

  • Improved Performance: Responsive images reduce bandwidth usage and improve load times
  • Better LCP: loading: 'eager' and fetchpriority: 'high' optimize LCP images
  • Mobile Optimization: Picture tag prevents oversized images on high-DPR mobile devices
  • Developer Experience: Comprehensive documentation and examples in LiquidDoc comments

Testing

  • ✅ Verified backward compatibility with existing usage in sections/product.liquid, sections/collection.liquid, sections/cart.liquid, and others
  • ✅ No linter errors
  • ✅ All existing parameters (image, url, class, width, height, crop) work as before

- Updated custom-section.liquid to utilize the new image rendering method with responsive attributes.
- Modified image.liquid to include additional parameters for improved accessibility and performance, such as alt text, loading strategy, and srcset handling.
- Implemented picture tag support for better mobile image optimization and added default values for loading and widths.
These changes improve the flexibility and responsiveness of image handling in the theme.
@octipus

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Copy Markdown
Author

I have signed the CLA!

Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@octipus@nakryhh
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Enhance image rendering in custom-section and image snippet - #75

Open
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main
Open

Enhance image rendering in custom-section and image snippet#75
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main

Conversation

@octipus

@octipusoctipus commented Jan 23, 2026

Copy link
Copy Markdown

Improve image snippet with responsive image best practices

Summary

This PR enhances the snippets/image.liquid snippet to follow Shopify's performance best practices for responsive images, based on recommendations from:

Changes

New Features

  1. Responsive Image Support (srcset and sizes)

    • Added widths parameter to generate multiple image sizes for srcset
    • Added sizes parameter to provide responsive display hints to the browser
    • Automatically defaults to base width and 2x version if widths is not provided
  2. Loading Strategy Control

    • Added loading parameter (defaults to 'lazy' for below-fold images)
    • Can be set to 'eager' for LCP images to improve Largest Contentful Paint
  3. Fetch Priority Support

    • Added optional fetchpriority parameter
    • Use 'high' for LCP images to prioritize their loading
  4. Picture Tag for Mobile DPR Capping

    • Added optional use_picture parameter
    • Prevents oversized images on high-DPR mobile devices (3x+) by capping at 2x
    • Configurable mobile_breakpoint parameter (default: 800px)
  5. CSS Updates

    • Added styles to support <picture> tag structure
    • Maintains existing image wrapper styles

Backward Compatibility

All existing usage patterns continue to work without any changes. All new parameters are optional with sensible defaults.

Usage Examples

{% comment %} Basic usage (backward compatible) {% endcomment %}
{% render'image', image:product.featured_image %}
{% comment %} With responsive srcset {% endcomment %}
{% render'image',
image:product.featured_image,
widths:'300, 600, 900',
sizes:'(min-width: 800px) 600px, 100vw'
%}
{% comment %} LCP image with high priority {% endcomment %}
{% render'image',
image:product.featured_image,
loading:'eager',
fetchpriority:'high',
widths:'600, 1200'
%}
{% comment %} With picture tag for mobile DPR capping {% endcomment %}
{% render'image',
image:collection.featured_image,
use_picture:true,
widths:'300, 600, 1200',
sizes:'(min-width: 800px) 600px, 100vw'
%}

Performance Improvements

Testing with a 2000×1000px image demonstrates significant performance gains:

MetricBeforeAfterImprovement
File Size680 KB234 KB66% reduction
Load Time141 ms55 ms61% faster

These improvements come from:

  • Responsive srcset delivering appropriately sized images
  • Automatic format optimization (AVIF/WebP) via Shopify's CDN
  • Proper sizes attribute preventing oversized downloads

Benefits

  • Improved Performance: Responsive images reduce bandwidth usage and improve load times
  • Better LCP: loading: 'eager' and fetchpriority: 'high' optimize LCP images
  • Mobile Optimization: Picture tag prevents oversized images on high-DPR mobile devices
  • Developer Experience: Comprehensive documentation and examples in LiquidDoc comments

Testing

  • ✅ Verified backward compatibility with existing usage in sections/product.liquid, sections/collection.liquid, sections/cart.liquid, and others
  • ✅ No linter errors
  • ✅ All existing parameters (image, url, class, width, height, crop) work as before

- Updated custom-section.liquid to utilize the new image rendering method with responsive attributes.
- Modified image.liquid to include additional parameters for improved accessibility and performance, such as alt text, loading strategy, and srcset handling.
- Implemented picture tag support for better mobile image optimization and added default values for loading and widths.
These changes improve the flexibility and responsiveness of image handling in the theme.
@octipus

Copy link
Copy Markdown
Author

I have signed the CLA!

Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

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Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@octipus@nakryhh
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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Enhance image rendering in custom-section and image snippet - #75

Open
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main
Open

Enhance image rendering in custom-section and image snippet#75
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main

Conversation

@octipus

@octipusoctipus commented Jan 23, 2026

Copy link
Copy Markdown

Improve image snippet with responsive image best practices

Summary

This PR enhances the snippets/image.liquid snippet to follow Shopify's performance best practices for responsive images, based on recommendations from:

Changes

New Features

  1. Responsive Image Support (srcset and sizes)

    • Added widths parameter to generate multiple image sizes for srcset
    • Added sizes parameter to provide responsive display hints to the browser
    • Automatically defaults to base width and 2x version if widths is not provided
  2. Loading Strategy Control

    • Added loading parameter (defaults to 'lazy' for below-fold images)
    • Can be set to 'eager' for LCP images to improve Largest Contentful Paint
  3. Fetch Priority Support

    • Added optional fetchpriority parameter
    • Use 'high' for LCP images to prioritize their loading
  4. Picture Tag for Mobile DPR Capping

    • Added optional use_picture parameter
    • Prevents oversized images on high-DPR mobile devices (3x+) by capping at 2x
    • Configurable mobile_breakpoint parameter (default: 800px)
  5. CSS Updates

    • Added styles to support <picture> tag structure
    • Maintains existing image wrapper styles

Backward Compatibility

All existing usage patterns continue to work without any changes. All new parameters are optional with sensible defaults.

Usage Examples

{% comment %} Basic usage (backward compatible) {% endcomment %}
{% render'image', image:product.featured_image %}
{% comment %} With responsive srcset {% endcomment %}
{% render'image',
image:product.featured_image,
widths:'300, 600, 900',
sizes:'(min-width: 800px) 600px, 100vw'
%}
{% comment %} LCP image with high priority {% endcomment %}
{% render'image',
image:product.featured_image,
loading:'eager',
fetchpriority:'high',
widths:'600, 1200'
%}
{% comment %} With picture tag for mobile DPR capping {% endcomment %}
{% render'image',
image:collection.featured_image,
use_picture:true,
widths:'300, 600, 1200',
sizes:'(min-width: 800px) 600px, 100vw'
%}

Performance Improvements

Testing with a 2000×1000px image demonstrates significant performance gains:

MetricBeforeAfterImprovement
File Size680 KB234 KB66% reduction
Load Time141 ms55 ms61% faster

These improvements come from:

  • Responsive srcset delivering appropriately sized images
  • Automatic format optimization (AVIF/WebP) via Shopify's CDN
  • Proper sizes attribute preventing oversized downloads

Benefits

  • Improved Performance: Responsive images reduce bandwidth usage and improve load times
  • Better LCP: loading: 'eager' and fetchpriority: 'high' optimize LCP images
  • Mobile Optimization: Picture tag prevents oversized images on high-DPR mobile devices
  • Developer Experience: Comprehensive documentation and examples in LiquidDoc comments

Testing

  • ✅ Verified backward compatibility with existing usage in sections/product.liquid, sections/collection.liquid, sections/cart.liquid, and others
  • ✅ No linter errors
  • ✅ All existing parameters (image, url, class, width, height, crop) work as before

- Updated custom-section.liquid to utilize the new image rendering method with responsive attributes.
- Modified image.liquid to include additional parameters for improved accessibility and performance, such as alt text, loading strategy, and srcset handling.
- Implemented picture tag support for better mobile image optimization and added default values for loading and widths.
These changes improve the flexibility and responsiveness of image handling in the theme.
@octipus

Copy link
Copy Markdown
Author

I have signed the CLA!

Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@octipus@nakryhh
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Enhance image rendering in custom-section and image snippet - #75

Open
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main
Open

Enhance image rendering in custom-section and image snippet#75
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main

Conversation

@octipus

@octipusoctipus commented Jan 23, 2026

Copy link
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Improve image snippet with responsive image best practices

Summary

This PR enhances the snippets/image.liquid snippet to follow Shopify's performance best practices for responsive images, based on recommendations from:

Changes

New Features

  1. Responsive Image Support (srcset and sizes)

    • Added widths parameter to generate multiple image sizes for srcset
    • Added sizes parameter to provide responsive display hints to the browser
    • Automatically defaults to base width and 2x version if widths is not provided
  2. Loading Strategy Control

    • Added loading parameter (defaults to 'lazy' for below-fold images)
    • Can be set to 'eager' for LCP images to improve Largest Contentful Paint
  3. Fetch Priority Support

    • Added optional fetchpriority parameter
    • Use 'high' for LCP images to prioritize their loading
  4. Picture Tag for Mobile DPR Capping

    • Added optional use_picture parameter
    • Prevents oversized images on high-DPR mobile devices (3x+) by capping at 2x
    • Configurable mobile_breakpoint parameter (default: 800px)
  5. CSS Updates

    • Added styles to support <picture> tag structure
    • Maintains existing image wrapper styles

Backward Compatibility

All existing usage patterns continue to work without any changes. All new parameters are optional with sensible defaults.

Usage Examples

{% comment %} Basic usage (backward compatible) {% endcomment %}
{% render'image', image:product.featured_image %}
{% comment %} With responsive srcset {% endcomment %}
{% render'image',
image:product.featured_image,
widths:'300, 600, 900',
sizes:'(min-width: 800px) 600px, 100vw'
%}
{% comment %} LCP image with high priority {% endcomment %}
{% render'image',
image:product.featured_image,
loading:'eager',
fetchpriority:'high',
widths:'600, 1200'
%}
{% comment %} With picture tag for mobile DPR capping {% endcomment %}
{% render'image',
image:collection.featured_image,
use_picture:true,
widths:'300, 600, 1200',
sizes:'(min-width: 800px) 600px, 100vw'
%}

Performance Improvements

Testing with a 2000×1000px image demonstrates significant performance gains:

MetricBeforeAfterImprovement
File Size680 KB234 KB66% reduction
Load Time141 ms55 ms61% faster

These improvements come from:

  • Responsive srcset delivering appropriately sized images
  • Automatic format optimization (AVIF/WebP) via Shopify's CDN
  • Proper sizes attribute preventing oversized downloads

Benefits

  • Improved Performance: Responsive images reduce bandwidth usage and improve load times
  • Better LCP: loading: 'eager' and fetchpriority: 'high' optimize LCP images
  • Mobile Optimization: Picture tag prevents oversized images on high-DPR mobile devices
  • Developer Experience: Comprehensive documentation and examples in LiquidDoc comments

Testing

  • ✅ Verified backward compatibility with existing usage in sections/product.liquid, sections/collection.liquid, sections/cart.liquid, and others
  • ✅ No linter errors
  • ✅ All existing parameters (image, url, class, width, height, crop) work as before

- Updated custom-section.liquid to utilize the new image rendering method with responsive attributes.
- Modified image.liquid to include additional parameters for improved accessibility and performance, such as alt text, loading strategy, and srcset handling.
- Implemented picture tag support for better mobile image optimization and added default values for loading and widths.
These changes improve the flexibility and responsiveness of image handling in the theme.
@octipus

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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Enhance image rendering in custom-section and image snippet - #75

Open
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main
Open

Enhance image rendering in custom-section and image snippet#75
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main

Conversation

@octipus

@octipusoctipus commented Jan 23, 2026

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Improve image snippet with responsive image best practices

Summary

This PR enhances the snippets/image.liquid snippet to follow Shopify's performance best practices for responsive images, based on recommendations from:

Changes

New Features

  1. Responsive Image Support (srcset and sizes)

    • Added widths parameter to generate multiple image sizes for srcset
    • Added sizes parameter to provide responsive display hints to the browser
    • Automatically defaults to base width and 2x version if widths is not provided
  2. Loading Strategy Control

    • Added loading parameter (defaults to 'lazy' for below-fold images)
    • Can be set to 'eager' for LCP images to improve Largest Contentful Paint
  3. Fetch Priority Support

    • Added optional fetchpriority parameter
    • Use 'high' for LCP images to prioritize their loading
  4. Picture Tag for Mobile DPR Capping

    • Added optional use_picture parameter
    • Prevents oversized images on high-DPR mobile devices (3x+) by capping at 2x
    • Configurable mobile_breakpoint parameter (default: 800px)
  5. CSS Updates

    • Added styles to support <picture> tag structure
    • Maintains existing image wrapper styles

Backward Compatibility

All existing usage patterns continue to work without any changes. All new parameters are optional with sensible defaults.

Usage Examples

{% comment %} Basic usage (backward compatible) {% endcomment %}
{% render'image', image:product.featured_image %}
{% comment %} With responsive srcset {% endcomment %}
{% render'image',
image:product.featured_image,
widths:'300, 600, 900',
sizes:'(min-width: 800px) 600px, 100vw'
%}
{% comment %} LCP image with high priority {% endcomment %}
{% render'image',
image:product.featured_image,
loading:'eager',
fetchpriority:'high',
widths:'600, 1200'
%}
{% comment %} With picture tag for mobile DPR capping {% endcomment %}
{% render'image',
image:collection.featured_image,
use_picture:true,
widths:'300, 600, 1200',
sizes:'(min-width: 800px) 600px, 100vw'
%}

Performance Improvements

Testing with a 2000×1000px image demonstrates significant performance gains:

MetricBeforeAfterImprovement
File Size680 KB234 KB66% reduction
Load Time141 ms55 ms61% faster

These improvements come from:

  • Responsive srcset delivering appropriately sized images
  • Automatic format optimization (AVIF/WebP) via Shopify's CDN
  • Proper sizes attribute preventing oversized downloads

Benefits

  • Improved Performance: Responsive images reduce bandwidth usage and improve load times
  • Better LCP: loading: 'eager' and fetchpriority: 'high' optimize LCP images
  • Mobile Optimization: Picture tag prevents oversized images on high-DPR mobile devices
  • Developer Experience: Comprehensive documentation and examples in LiquidDoc comments

Testing

  • ✅ Verified backward compatibility with existing usage in sections/product.liquid, sections/collection.liquid, sections/cart.liquid, and others
  • ✅ No linter errors
  • ✅ All existing parameters (image, url, class, width, height, crop) work as before

- Updated custom-section.liquid to utilize the new image rendering method with responsive attributes.
- Modified image.liquid to include additional parameters for improved accessibility and performance, such as alt text, loading strategy, and srcset handling.
- Implemented picture tag support for better mobile image optimization and added default values for loading and widths.
These changes improve the flexibility and responsiveness of image handling in the theme.
@octipus

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Author

I have signed the CLA!

Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

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Development

Successfully merging this pull request may close these issues.

2 participants

@octipus@nakryhh
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
Skip to content

Enhance image rendering in custom-section and image snippet - #75

Open
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main
Open

Enhance image rendering in custom-section and image snippet#75
octipus wants to merge 1 commit into
Shopify:mainfrom
octipus:main

Conversation

@octipus

@octipusoctipus commented Jan 23, 2026

Copy link
Copy Markdown

Improve image snippet with responsive image best practices

Summary

This PR enhances the snippets/image.liquid snippet to follow Shopify's performance best practices for responsive images, based on recommendations from:

Changes

New Features

  1. Responsive Image Support (srcset and sizes)

    • Added widths parameter to generate multiple image sizes for srcset
    • Added sizes parameter to provide responsive display hints to the browser
    • Automatically defaults to base width and 2x version if widths is not provided
  2. Loading Strategy Control

    • Added loading parameter (defaults to 'lazy' for below-fold images)
    • Can be set to 'eager' for LCP images to improve Largest Contentful Paint
  3. Fetch Priority Support

    • Added optional fetchpriority parameter
    • Use 'high' for LCP images to prioritize their loading
  4. Picture Tag for Mobile DPR Capping

    • Added optional use_picture parameter
    • Prevents oversized images on high-DPR mobile devices (3x+) by capping at 2x
    • Configurable mobile_breakpoint parameter (default: 800px)
  5. CSS Updates

    • Added styles to support <picture> tag structure
    • Maintains existing image wrapper styles

Backward Compatibility

All existing usage patterns continue to work without any changes. All new parameters are optional with sensible defaults.

Usage Examples

{% comment %} Basic usage (backward compatible) {% endcomment %}
{% render'image', image:product.featured_image %}
{% comment %} With responsive srcset {% endcomment %}
{% render'image',
image:product.featured_image,
widths:'300, 600, 900',
sizes:'(min-width: 800px) 600px, 100vw'
%}
{% comment %} LCP image with high priority {% endcomment %}
{% render'image',
image:product.featured_image,
loading:'eager',
fetchpriority:'high',
widths:'600, 1200'
%}
{% comment %} With picture tag for mobile DPR capping {% endcomment %}
{% render'image',
image:collection.featured_image,
use_picture:true,
widths:'300, 600, 1200',
sizes:'(min-width: 800px) 600px, 100vw'
%}

Performance Improvements

Testing with a 2000×1000px image demonstrates significant performance gains:

MetricBeforeAfterImprovement
File Size680 KB234 KB66% reduction
Load Time141 ms55 ms61% faster

These improvements come from:

  • Responsive srcset delivering appropriately sized images
  • Automatic format optimization (AVIF/WebP) via Shopify's CDN
  • Proper sizes attribute preventing oversized downloads

Benefits

  • Improved Performance: Responsive images reduce bandwidth usage and improve load times
  • Better LCP: loading: 'eager' and fetchpriority: 'high' optimize LCP images
  • Mobile Optimization: Picture tag prevents oversized images on high-DPR mobile devices
  • Developer Experience: Comprehensive documentation and examples in LiquidDoc comments

Testing

  • ✅ Verified backward compatibility with existing usage in sections/product.liquid, sections/collection.liquid, sections/cart.liquid, and others
  • ✅ No linter errors
  • ✅ All existing parameters (image, url, class, width, height, crop) work as before

- Updated custom-section.liquid to utilize the new image rendering method with responsive attributes.
- Modified image.liquid to include additional parameters for improved accessibility and performance, such as alt text, loading strategy, and srcset handling.
- Implemented picture tag support for better mobile image optimization and added default values for loading and widths.
These changes improve the flexibility and responsiveness of image handling in the theme.
@octipus

Copy link
Copy Markdown
Author

I have signed the CLA!

Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants

@octipus@nakryhh