Dynapik offers a free online tool to change image types - no need to download anything. It's quick and easy to use. You can change your WBMP images to ICON format. This tool works for both professionals and casual users. Convert your images to ICON in seconds.
Wireless Bitmap
The pixel format of the Nokia 3310 era.
WBMP (Wireless Bitmap) is a monochrome graphics file format optimized for mobile computing devices using the Wireless Application Protocol (WAP). It was designed for the extremely limited bandwidth and display capabilities of early 2000s feature phones.
A WBMP file is an uncompressed sequence of bits with a minimal variable-byte integer header usually encoding generic type (0), width, and height. It supports only 1-bit color (black and white). There is no compression, palette, or gray scale.
Developed by the WAP Forum to deliver icons and simple graphics to mobile phones over 2G networks.
Icon File
A generic, often ambiguous extension for icon resources.
The `.icon` file extension is a generic identifier for icon images. Unlike the strictly defined `.ico` (Windows Icon), `.icon` is often used in Unix/Linux environments or by tools like ImageMagick as a catch-all alias for various icon formats (including Sun Icon, XBM, or simply renamed ICO files). It is not a standardized format itself but a convention for naming icon resources.
The internal structure of an `.icon` file depends entirely on what created it. It might be a standard Microsoft ICO container with multiple sizes and color depths. It might be a persistent X11 bitmap (XPM). Or it might be a Sun Raster file used for icons on Solaris systems. Because of this ambiguity, it requires a robust viewer that detects format by 'magic bytes' rather than extension.
In the early days of GUI desktops (SunOS, IRIX, early X11), there wasn't a single unified icon standard like Windows .ico. The `.icon` extension served as a descriptive label for files intended to be used as desktop icons, regardless of their underlying binary format.
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