Kernvel Seasonal Effects

Kernvel Seasonal Effects renders everything in a single lightweight canvas overlay with zero layout shift by design — so your Christmas snow or BFCM confetti never costs you a Core Web Vitals hit. Set it once and forget it: schedule any effect to switch on and off automatically for a holiday, sale, or promotion, choose exactly where it shows — homepage, product pages, or storewide, mobile toggled separately — and pick from 12 one-tap seasonal presets or fine-tune density, speed, size, drift, etc