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② 後台搜尋「PB Text and Images Placeholder Fallback Suite」→ 直接安裝（推薦）
原文外掛簡介
PB Text and Images Placeholder Fallback Suite fills common empty image locations on your WordPress site with a clean, professional placeholder — or your own custom image. Configure each supported location independently from the plugin settings.
Covered image slots:
Featured Images — posts, pages, and any custom post type (configurable per post type)
User Avatars & Gravatars — shown when a user has no Gravatar photo
WooCommerce Product Images — catalog grid, single product, gallery thumbnails, cart, and mini-cart
Open Graph / Social Share Images — compatible with Yoast SEO, All in One SEO, and RankMath
Broken Images — Global Catch-all — Optional JavaScript handler for many broken frontend elements
Intelligent dynamic placeholders:
Dynamic Text Placeholders — generates SVG placeholders with the post title, category emoji, and category name embedded directly on the image. Each supported post can receive a distinct placeholder generated from its available metadata.
Initials Avatar Generator — generates personalised circle, square, or rounded avatars with user initials (for example, “JD”). Available in brand colours or a consistent random colour per user.
Automatic Brand Colour Detection — scans your active theme’s colour palette (editor palette, global styles, customiser) and uses the primary brand colour for all generated placeholders. No external requests.
Category Placeholder Mapping — map post categories and WooCommerce product categories to custom emojis and colours. Technology→💻, Travel→✈️, Food→🍽️, Business→📈.
Site health tools:
Image Health Dashboard — shows posts, pages, and products without a usable featured-image attachment, plus registered users covered by the avatar fallback. Statistics refresh every 10 minutes from the database.
Fix Missing Images — a dedicated screen listing all posts/pages/products missing a featured image. Select multiple posts and bulk-assign any Media Library image as the featured image in one click.
Why this plugin stands out:
✅ Ships with 8 bundled SVG placeholders at the correct dimensions for each slot
✅ Bundled SVG placeholders are each under 2 KB
✅ No external calls — everything is self-contained, including dynamic SVG generation
✅ No account required — install and go
✅ Each slot is independently toggled — enable only what you need
✅ Choose bundled placeholder, your own custom image from the Media Library, or dynamic generated placeholders
Bundled placeholder sizes:
Slot
Size
Featured image
1200 × 628 px
Post thumbnail
800 × 450 px
Open Graph image
1200 × 630 px
User avatar
96 × 96 px
Author image
150 × 150 px
WooCommerce product
800 × 800 px
WooCommerce catalog
324 × 324 px
WooCommerce gallery thumb
100 × 100 px
