.stitches-ff(@x: 0, @y: 0, @width: 0, @height: 0) {
    background-position: @x @y;
    width: @width;
    height: @height;
    background-image: url(@img-sprites);    background-repeat: no-repeat;
    display: inline-block;
}

.sheet-ff-check-off {
    .stitches-ff(-1px, -1px, 15px, 15px);
}

.sheet-ff-check-on {
    .stitches-ff(-18px, -1px, 15px, 15px);
}

.sheet-ff-dice-d10-green {
    .stitches-ff(-35px, -1px, 35px, 35px);
}

.sheet-ff-dice-d10-green-s {
    .stitches-ff(-72px, -1px, 23px, 23px);
}

.sheet-ff-dice-d10-white {
    .stitches-ff(-97px, -1px, 20px, 20px);
}

.sheet-ff-dice-d10-yellow {
    .stitches-ff(-119px, -1px, 35px, 35px);
}

.sheet-ff-dice-d10-yellow-s {
    .stitches-ff(-156px, -1px, 23px, 23px);
}

.sheet-ff-dice-d12-green {
    .stitches-ff(-181px, -1px, 35px, 35px);
}

.sheet-ff-dice-d12-green-s {
    .stitches-ff(-218px, -1px, 23px, 23px);
}

.sheet-ff-dice-d12-white {
    .stitches-ff(-243px, -1px, 20px, 20px);
}

.sheet-ff-dice-d12-yellow {
    .stitches-ff(-265px, -1px, 35px, 35px);
}

.sheet-ff-dice-d12-yellow-s {
    .stitches-ff(-302px, -1px, 23px, 23px);
}

.sheet-ff-dice-d4-green {
    .stitches-ff(-327px, -1px, 35px, 35px);
}

.sheet-ff-dice-d4-green-s {
    .stitches-ff(-364px, -1px, 23px, 23px);
}

.sheet-ff-dice-d4-white {
    .stitches-ff(-389px, -1px, 20px, 20px);
}

.sheet-ff-dice-d4-yellow {
    .stitches-ff(-411px, -1px, 35px, 35px);
}

.sheet-ff-dice-d4-yellow-s {
    .stitches-ff(-448px, -1px, 23px, 23px);
}

.sheet-ff-dice-d6-green {
    .stitches-ff(-473px, -1px, 35px, 35px);
}

.sheet-ff-dice-d6-green-s {
    .stitches-ff(-510px, -1px, 23px, 23px);
}

.sheet-ff-dice-d6-white {
    .stitches-ff(-535px, -1px, 20px, 20px);
}

.sheet-ff-dice-d6-yellow {
    .stitches-ff(-557px, -1px, 35px, 35px);
}

.sheet-ff-dice-d6-yellow-s {
    .stitches-ff(-594px, -1px, 23px, 23px);
}

.sheet-ff-dice-d8-green {
    .stitches-ff(-619px, -1px, 35px, 35px);
}

.sheet-ff-dice-d8-green-s {
    .stitches-ff(-656px, -1px, 23px, 23px);
}

.sheet-ff-dice-d8-white {
    .stitches-ff(-681px, -1px, 20px, 20px);
}

.sheet-ff-dice-d8-yellow {
    .stitches-ff(-703px, -1px, 35px, 35px);
}

.sheet-ff-dice-d8-yellow-s {
    .stitches-ff(-740px, -1px, 23px, 23px);
}

.sheet-ff-plot-point-big {
    .stitches-ff(-765px, -1px, 100px, 100px);
}

.sheet-ff-plot-point-small {
    .stitches-ff(-867px, -1px, 50px, 50px);
}

.sheet-ff-plot-point-tiny {
    .stitches-ff(-919px, -1px, 25px, 25px);
}