32bit PNG for Asset Store

Hi, wondering if anyone has used Photoshop to save the icon.png, small.png, medium.png, big.png files for use with the Asset Store? Can this be done and if so how?

I have saved 24-bit png and i'm ticking the transparency box as I save for web. My understanding is that 24bit PNG + transparancy set (alpha) = the extra 8 bits for total of 32 bits is the same as saving it straight out of Fireworks which seems to work fine for me..?

When I submitted I just saved out a PNG in gimp( with transparency ), Then in unity I set the import setting to 32 bit alpha... This may not be the quote "right" way to do it but it worked fine ;)

Yes, it works fine from Photoshop.