Classic Mac Patterns

The 38 original 8×8-pixel black and white patterns from Macintosh System 1 Control Panel and MacPaint, extracted from the PAT# resource in the System file.

Web Viewer

Visit https://paulsmith.github.io/classic-mac-patterns/ to browse and download patterns.

Formats

Patterns are available in multiple formats and resolutions:

• PBM: Original NetPBM format (8×8)
• PNG, GIF, WebP, AVIF, TIFF, ICO: 8×8, 16×16, 32×32, 64×64
• Archives: ZIP files by format and resolution

Building

Get a System file from a System 1 through 6 disk. (See this blog post for details.) Extract patterns from System file:

$ DeRez -only PAT\# System > patterns.r
$ uv run extract.py patterns.r --outdir patterns

Generate web assets:

./generate_assets.sh

Pattern Data

38 patterns total, numbered 0-37. Each pattern is 8 bytes representing an 8×8 pixel bitmap.

Source: Macintosh System 6 (patterns unchanged since System 1.0, 1984).