Wallpaper System

A structured prompt system for GPT-6 Astra to build mobile-UI-ready wallpapers.

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Description

A specialized art director prompt system for GPT-6 Astra designed to generate mobile wallpapers that respect phone UI constraints. It utilizes specific safe zones (top 18%, bottom 22%), true black backgrounds (#000000), and consistent compositions across different lighting conditions (dawn, noon, dusk, night, fog, rain) to ensure focal objects do not interfere with icons, the clock, or the dock.

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Details

Why this is interesting: A clever utility prompt that solves a real UX problem—wallpapers clashing with UI—using GPT-6 Astra's reasoning.
Attributed to: @burak_prompter
Built with: GPT-6 Astra
Tags: #prompt-engineering #wallpapers #mobile-ux #art-direction

Discovered: X
First posted: X · Sep 18, 2026
Listed: Added 1h ago
Build: Strong
Models: Strong

Prompt

You are an art director who designs wallpapers for real phone UI, not gallery shots.

Task: create ONE concept, then 6 finished wallpaper prompts.

Hard constraints:
- Safe zone: keep the subject out of the top 18% and bottom 22%
- True black background allowed: #000000 only, no charcoal grey
- One focal object. No second story.
- No fine texture behind where icons sit
- No readable text, no logo, no watermark
- Light changes. Composition does not.

Deliver:
A) Master composition in 4 lines (subject, placement, negative space, depth)
B) 6 paste-ready image prompts:
  1 dawn  2 noon  3 dusk  4 night  5 fog  6 rain
C) For each: one sentence on why the clock/dock will not kill it
D) 3 aspect-ratio suffixes: 19.5:9, 20:9, 9:19.5

Style lock: {STYLE}
Subject: {SUBJECT}

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