Desktop Background Changer: Create Dynamic Themed Wallpaper Lists

Desktop Background Changer: Create Dynamic Themed Wallpaper Lists

What it does

Creates and manages themed wallpaper playlists so your desktop background changes automatically based on curated sets (e.g., Seasons, Moods, Work vs. Play, Travel, Minimalism).

Key features

• Playlists: Group images into named lists (Seasonal, Focus, Nature, etc.).
• Scheduling: Set time-based rules (hourly, daily, sunrise/sunset, weekdays/weekends).
• Context triggers: Switch lists based on active application, battery state, or network.
• Multi-monitor support: Assign different playlists per monitor or span a playlist across screens.
• Transitions: Smooth fades, crossfades, or instant swaps with configurable durations.
• Image handling: Auto-resize, crop, center, and apply basic filters (grayscale, blur, color shift).
• Randomization & ordering: Shuffle, loop, or use weighted/random-without-repeat modes.
• Import & export: Save and share playlists (JSON or proprietary file) and bulk-import folders.
• Metadata tags: Tag images by theme, color, location, or mood for dynamic list building.
• Preview & edit: Preview a playlist sequence and remove/replace images quickly.

Typical use cases

• Keep a seasonal rotation (spring/summer/fall/winter).
• Create work-focused sets with low-distraction wallpapers and personal sets for evenings.
• Showcase travel photos by month or location.
• Match wallpapers to music mood or lighting (using ambient light or time-of-day triggers).

Implementation notes (brief)

• Store playlists as JSON with fields: name, image paths/URLs, tags, schedule rules, monitor assignments, transition settings.
• Use OS-specific APIs for setting wallpaper (Windows SPI, macOS AppleScript/osascript, GNOME/KDE DBus).
• For sync, support local folders and cloud sources (OneDrive, Google Drive, local network).
• Respect performance: preload next image, limit full-resolution loads, and avoid frequent disk thrashing.

Example playlist JSON (simplified)

json
Copy CodeCopied
{
“name”: “Focus Mornings”,
  “schedule”: {“start”:“07:00”,“end”:“12:00”,“days”:[“Mon”,“Tue”,“Wed”,“Thu”,“Fri”]},
  “transition”:“fade”,
  “interval_minutes”:30,
  “images”:[
    {“path”:“C:/Wallpapers/minimal1.jpg”,“tags”:[“minimal”,“blue”]},
    {“path”:“C:/Wallpapers/minimal2.jpg”,“tags”:[“minimal”,“neutral”]}
  ]
}