- Extension
- .ico
- .pi4
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- Microsoft
- Atari
- Description
- An ICO file is an image format used to store icons for Windows programs, files, and folders. It contains two bitmaps: 1) the AND bitmap - the image mask (which determines what part of the icon is transparent) and 2) the XOR bitmap - contains the icon which is mapped onto the image mask. ICO files can be modified to create custom icons.
- The PI4 file type is associated with Degas & Degas Elite, which are image file formats used primarily on the Atari ST series of computers in the 1980s and early 1990s. These files contain bitmap graphics created or manipulated within the Degas or Degas Elite drawing programs, which were notable for their powerful features and user-friendly interfaces during their time. PI4 files specifically represent images saved in a low-resolution mode, which typically means a palette of 16 colors from a selection of 512, at a resolution of 320x200 pixels. The format was widely used for digital art, game design, and multimedia presentations within the Atari ST community.
- MIME Type
- image/x-icon
- image/x-pi4
