Over time the format has been improved and there is support for compression of some parts of the pixel data. So, if you want to save the data to a file you have to prepend the icns header.
Mono framework imac icon mac os x#
"Table of Contents" a list of all image types in the file, and their sizes (added in Mac OS X 10.7)Ĥ-byte big endian float - equal to the bundle version number of Icon Composer.app that created the icon
![mono framework imac icon mono framework imac icon](https://www.minicreo.com/mac-uninstaller/img/uninstall-mono-framework-mac-2.jpg)
Therefore, the supported OS version may not be accurate or adjusted based on file format.
![mono framework imac icon mono framework imac icon](https://images.squarespace-cdn.com/content/v1/521f43e3e4b0a4df32b9b1bd/1407024649198-4EJH4IJHB6BZBX0J76VU/image-asset.png)