I converted a 256px ico file to a 256px png so I could edit it in Photoshop. The problem I'm having is once I'm done in Photoshop, I save the png image, go to IcoFX and convert the 256px png to a ico file, but it shrinks the ico image down to 32px. Why is this?
I am not sure if/how browsers scale large icons, but The W3C suggests the following1:
The format for the image you have chosen must be 16x16 pixels or 32x32 pixels, using either 8-bit or 24-bit colors. The format of the image must be one of PNG (a W3C standard), GIF, or ICO.