*  img/fly.pbm,
    *  img/fly.pgm,
    *  img/fly.ppm,
    *  img/small.pbm,
    *  img/small.pgm,
    *  img/small.ppm,
    *  img/tiny.pbm,
    *  img/tiny.pgm,
    *  img/tiny.ppm: New.