Some things for Sprites
:arrow: Transparency
:arrow: Rotation
:arrow: Scaling
are musts

Why use Lua for the scripting engine. I'm a Pascal programmer and would rather write my scripting in Pascal as well. There are many pascal scripting projects out there - DWS, paxScript etc etc - why not integrate one of them into the 2D libraries.

One reason I stopped using GLXtreem (Still have it installed though) is that I found it inconsistent accross different computers. This is something that must be made more stable in the new Libraries.

Are you considering doing this as a Andreaz only project or are you considering opening it up as an open source collaboration project? I would certainly like to be involved if you did do somethign like this.