Icon Set Tools: Folder Icon Reroller

This script automatically updates Windows folder icons by picking a random image from within each subfolder. It crops the image to a square, converts it to a high-quality .ico file, and handles the desktop.ini configuration and file attributes automatically.

Before

After

How it Works

1. Cleanup: Removes any existing folder_icon.ico or desktop.ini files.
2. Selection: Randomly selects a .jpg, .jpeg, .png, or .bmp from the subfolder.
3. Processing: Crops the image to 1:1 and resizes to 256x256.
4. Configuration: Generates desktop.ini and sets Windows System/Hidden attributes.
5. Refresh: Triggers a shell notification to update icons immediately.

Requirements

• Windows OS

• Python 3.x

• Pillow (PIL)

  pip install Pillow

Usage

1. Place set_icons.py in the root directory.
2. Run run.bat or python set_icons.py.