Windows XP Icons

Windows XP introduces a new, richer image format for desktop icons not supported by earlier versions of Windows.
"Pre-XP" icons
Limited to 256 colors.
Colors are tied to a fixed color palette, placing restrictions on the use of color. Colors must be pre-defined in the color palette before they can be used. Prevents the use of anti-alias and gradient effects.
Only two levels of transparency (completely transparent or completely opaque).

Windows XP icons
Can contain any of 16 million colors (True Color).
Does not use a color palette. Any of 16 million colors can be applied at will.
8-bit "alpha" channel provides 256 levels of transparency.


Related Topics