Developer projects — component libraries, admin dashboards, and web apps — need placeholder images before real assets are available. This preset covers the most common image slots in typical web application layouts.
| Name | Dimensions | Description |
|---|---|---|
| hero | 1600x900 | Hero banner — 1600×900px (16:9), the full-width page header image |
| component_card | 960x720 | Component card — 960×720px (4:3), fits card, panel, and media object components |
| dashboard_widget | 640x360 | Dashboard widget — 640×360px (16:9), fills chart and data visualization placeholders |
| modal | 720x540 @2x | Modal hero — 720×540px @2x, high-DPI image for modal dialogs and lightboxes |
| thumb | 420x247 | Thumbnail — 420×247px (approx 16:9), compact thumbnail for list and grid items |
Placeholder images in a development environment give every image slot a defined size and label so layouts render correctly from the first commit. A hero image placeholder at 1600×900 prevents layout shift when the real photo is added. Component card placeholders at 960×720 keep Storybook stories stable. Dashboard widget placeholders at 640×360 fill charts and preview areas consistently across environments.
Populate Storybook stories with correctly sized placeholder images for every component variant. Keep baselines stable for Chromatic visual regression.
Fill dashboard widget slots, data table thumbnails, and chart placeholders with labeled images that communicate the intended content type.
Use the PlacePack REST API to generate image URLs for database seeds and fixtures. Deterministic URLs mean the same spec always produces the same image.
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