Hi Max.

1) @You : "...I think 24x24 should be enough for LoDPI displays, and 48x48 or 64x64 for HiDPI."

Hmm...I think 24x24 it's too small. Maybe 32x32 is better. For HiDPI let's go for 64x64.
How to check DPI in Moi scripting ?

3) @You : "...we should use 24-bit png..."
Maybe there's a little misunderstanding :)
With 8 Bit I mean 8 bits per channel....so 24 bit.
OK

@You : "...P.S. Wait.. Does MoI support svg/svgz images? It's a best variant..."

Ok I wait.
I think, too, that SVG would be perfect.

Now I ask to Michael.

We'll catch up!

Ciao.

Marco (mkdm)