what new features would you like in lf2?

[A-Man]

you wont need a top left pixel thing i mean you can even use partial alpha transparency in your sprites.

Yes. I understand, but this:

but a projected one also came to my mind. I'll see if I can do that and how it looks. Maybe it'll stay exclusive to a sunset background or something

Unless you plan to have the developer manually create all the shadows, then you MUST allow setting colorkeys. Try brainstorming the mechanism of generating a shadow sheet from a grid, and you will see what I mean.