Homebrew Texture Filtering in 3DS Games?

[KingpinSlim]

Objetively most games on the 3DS look horrible because of the jagged lines.
Would it be possible to use homebrew to implement some kind of texture Filtering?

 

[KingpinSlim]

unintentional double-post. please remove!

 

[Roomsaver]

This is called Anti-aliasing. I think you'd need to modify the textures themselves, although I'm not sure.