ByAldon DailyWall

ByAldon DailyWall is a lightweight Windows wallpaper changer.

It downloads the daily Bing wallpaper, saves the original image locally, can create a separate local watermarked copy, and can set the chosen image as the Windows desktop background.

The project is intentionally simple, clean, and transparent about what it does.

Features

• Downloads the daily Bing wallpaper
• Saves original wallpapers locally
• Creates a separate local watermarked copy by default
• Allows the watermark to be disabled by the user
• Sets the image as the Windows desktop wallpaper
• Keeps a local wallpaper history
• Avoids downloading the same wallpaper twice
• Can skip setting the wallpaper if nothing new was downloaded or created
• Can automatically clean up older local wallpapers
• Includes a system tray app with About, Settings, and Close app
• Settings window includes explanatory text for non-technical users
• Optional startup with Windows
• About window shows the current version and GitHub repository link
• About window can check GitHub releases, including pre-releases, for updates
• Uses your own ByAldon branding only
• No tracking
• No analytics

Current version

0.6.1

Project structure

assets/
  icon.ico
  icon.png
  wallpapers/
    .gitkeep
    original/
      .gitkeep
    watermarked/
      .gitkeep

wallpaper/
  app_core.py
  bing.py
  storage.py
  watermark.py
  windows.py

config.json
main.py
tray.py
requirements.txt
README.md
LICENSE

Local runtime files such as assets/history.json, downloaded wallpapers, and generated watermarked wallpapers are intentionally ignored by Git.

Requirements

• Windows 10 or Windows 11
• Python 3.10 or newer
• Pillow
• pystray

Install dependencies with:

python -m pip install -r requirements.txt

Or manually:

python -m pip install pillow pystray

Usage

Run the classic console version:

python main.py

Run the system tray version:

python tray.py

The tray version starts the wallpaper update once, then keeps an icon in the Windows notification area.

Right-click the tray icon to open:

About
Settings
Close app

Tray app

The tray app is the intended end-user direction for ByAldon DailyWall.

About

The About window shows:

• App name
• Current version
• GitHub repository link
• Check for updates button

The update check compares the local app version with the newest GitHub release. During development it also checks pre-releases.

GitHub repository:

https://github.com/ByAldon/ByAldon-DailyWall

Settings

The Settings window currently includes:

• Start ByAldon DailyWall when Windows starts
• Show ByAldon DailyWall watermark
• Set image as Windows wallpaper
• Wallpaper mode: new_only or always

Configuration

Settings are stored in config.json.

{
  "app_name": "ByAldon DailyWall",
  "market": "en-US",
  "image_resolution": "UHD",

  "wallpaper_original_folder": "assets/wallpapers/original",
  "wallpaper_watermarked_folder": "assets/wallpapers/watermarked",
  "history_file": "assets/history.json",

  "set_as_wallpaper": true,
  "set_wallpaper_mode": "new_only",
  "keep_wallpapers": 30,

  "apply_watermark": true,
  "watermark_text": "ByAldon DailyWall",
  "watermark_icon": "assets/icon.png",
  "watermark_position": "bottom_right",
  "watermark_opacity": 0.30,
  "watermark_scale": 0.78,
  "watermark_bottom_offset": 42
}

Main options

Setting	Description
app_name	The application name shown in the terminal.
market	Bing market/region, for example en-US, nl-NL, or de-DE.
image_resolution	Use UHD for high resolution.
wallpaper_original_folder	Folder where untouched original wallpapers are stored.
wallpaper_watermarked_folder	Folder where local watermarked copies are stored.
history_file	JSON file where local wallpaper history is saved.
set_as_wallpaper	Set to true to update the Windows wallpaper.
set_wallpaper_mode	Use new_only or always.
keep_wallpapers	Maximum number of local wallpapers to keep in history.

Watermark options

Watermarking is enabled by default for the final product direction, but it remains the user's choice.

To disable it, set:

"apply_watermark": false

Or use the Settings window in the tray app.

Setting	Description
apply_watermark	Set to true to create and use a local watermarked copy. Set to false to use the untouched original image.
watermark_text	Text shown in the watermark.
watermark_icon	Path to your own icon used in the watermark.
watermark_position	Supports bottom_right, bottom_left, top_right, and top_left.
watermark_opacity	Controls watermark transparency. Lower is more subtle.
watermark_scale	Controls watermark size. Lower is smaller.
watermark_bottom_offset	Moves bottom-positioned watermarks upward. Useful to avoid the Windows taskbar.

Wallpaper modes

set_wallpaper_mode supports two modes:

new_only

Only sets the wallpaper when a new image was downloaded or a new watermarked copy was created.

always

Always sets the wallpaper, even if the image already exists locally.

Original and watermarked files

ByAldon DailyWall keeps original downloaded wallpapers untouched:

assets/wallpapers/original/

If watermarking is enabled, the app creates a separate local copy:

assets/wallpapers/watermarked/

The original image is never modified.

Privacy

ByAldon DailyWall does not track you, collect personal data, or send analytics.

The app only connects to Bing to fetch the daily wallpaper information and image.

Independence notice

ByAldon DailyWall is an independent project and is not affiliated with, endorsed by, or sponsored by Microsoft or Bing.

Downloaded images remain subject to their original copyright and licensing terms.

This project does not use Microsoft or Bing logos, icons, or branding as part of its own app identity.

Planned features

• Build as standalone .exe
• Wallpaper preview
• Unsplash support
• Improved graphical interface

License

This project is licensed under the MIT License.