GlowIcons

GlowIcons is the native icon file format for AmigaOS 3.5–4.0. It may also be known by names such as OS35 images or OS3.5 extension icons.

A GlowIcons image is 46×46 pixels, and can have up to 256 colors.

See Amiga Workbench icon for more information about Amiga icons.

Format
A GlowIcons file has several headers, followed by image data in the form of an encapsulated IFF file.

Identification
Files begin with bytes, as do all the major Amiga icon formats.

File contains the ASCII strings (IFF tags) " " and " ".

Specifications

 * http://www.evillabs.net/wiki/index.php/Amiga_Icon_Formats

Sample files

 * http://www.amiga-look.org/category/glowicons
 * Some of the icons at http://aminet.net/pix/icon

Links

 * Wikipedia: NewIcons - Also has information about GlowIcons

Editors' notes
GlowIcons is allegedly derived from the third-party NewIcons format, but we're having a hard time seeing any similarities.