On 4/25/05, Rowan Collins rowan.collins@gmail.com wrote:
[...] Microsoft never got round to implementing the rather useful feature of the PNG standard that lets you add an "alpha" layer for transparency, rather than specifying one colour as transparent in the palette.
From the IE development people: "IE7 beta 1 – A few details…"
http://blogs.msdn.com/ie/archive/2005/04/22/410963.aspx
though that won't be very useful for backward-compatible software like MediaWiki.