Background Motion v1.2.1 — Initial Release

What's new

Initial public release of Background Motion — an interactive pixel displacement canvas effect for WordPress.

Features

• Full-screen canvas layer with pixel grid displacement on mouse movement
• Spring-based lerp animation for smooth, stretchy cell return
• Live color preview in the settings panel (R/G/B multipliers + brightness)
• Page targeting — all pages, front page only, or specific page IDs
• Custom SVG icon in the WordPress root sidebar menu
• Cursor dot and influence ring toggles
• Pauses automatically on hidden tabs (Page Visibility API)
• Debounced resize handler — grid rebuilds cleanly on viewport change
• Zero dependencies — vanilla JS, no jQuery or external libraries

Settings

• Cell size, influence radius, displacement strength, return speed (lerp)
• R/G/B color multipliers with base brightness control
• Alpha min/max for per-cell transparency variation
• Z-index and canvas opacity controls

Requirements

• WordPress 5.8+
• PHP 7.4+
• Any modern browser with Canvas 2D support

Files

• background-motion.zip — ready to install via WordPress plugin uploader