Another ultra fast shader, a combination of plain scanline.glsl with a Gray-White mask, Bloom and Gamma. And it still runs 60fps at crappy netbook with gma3600 at 768p. Because why not? Some people may find it useful. I believe the image can be really good (especially at 1080p) for what it requires to run.
https://mega.nz/file/6upwVYqT#AWToDvhZo-2xVODf796qTmH7m5um74I9BLy5EMyI8JE