Ok, thanks for that very explicit answer on the shader filder
yeah as you said, I can't find too much difference between the regular bilinear and the shader one but it never bothered me to be true.
As for the custom shader, I just said that because I remember that, a long time ago, when I use adept at using emulators, a certain branch of M.A.M.E had an option where you selected the shader option and then you would but a file with your shader on the folder, writen by you. Then you could play the game with that shader: I remember playing those games with a neat combination of scanlines, CRT curvature and RGB effect that was really neat and authentic
And no, I don't really need (or want) that feature: it seems like you guys have enough work already with the Linux (yes, this one I really want
) and mobile versions!