Add gpu acceleration, themes and languages

This is cool program, very useful in my graphic design work. Also compatybility with Photoshop. I don't know what i can add more, but gpu acceleration like using for example CUDA from Nvidia would be nice and that would be huge improvement performance of the Filter Forge system. Also personalized themes could be nice add for example photoshop style theme, and add some icon buttons in menu. In the end i would add languages becouse of that way more people can use this great program and not everyone know english :)