* { margin: 0; padding: 0;}    // for demo purposes, don't use in production!!
body { padding: 100px; font-family: sans-serif; }       // for demo, not required
h4 { margin: 35px 0 10px 0; color: #444;}

/*  Styles above are for demo page, not required for spriting  */


@import "utilities/retina-sprites";  // import this once for all sprites





/* ======== In production, I would abstract all of the following into it's own SCSS file ======== */


$sprites: sprite-map("sprites/buttons/*.png");              // import 1x sprites from buttons subfolder 
$sprites2x: sprite-map("sprites-retina/buttons/*.png");     // import 2x sprites from buttons subfolder


 // $sprites: sprite-map("sprites/buttons/*.png", $spacing: 40px);          // add padding to sprite sheet
 // $sprites2x: sprite-map("sprites-retina/buttons/*.png", $spacing: 80px); // add padding to sprite sheet


.myHoverActiveButton {
	@include sprite(signIn, $hover: true, $active: true);
}

.myHoverButton {
	@include sprite(signIn, $hover: true);
}

.myActiveButton {
	@include sprite(signIn, $active: true);
}

.myBoringButton {
	@include sprite(signIn);
}


* { margin: 0; padding: 0;}    // for demo purposes, don't use in production!!
body { padding: 100px; font-family: sans-serif; }       // for demo, not required
h4 { margin: 35px 0 10px 0; color: #444;}

/*  Styles above are for demo page, not required for spriting  */


@import "utilities/retina-sprites";  // import this once for all sprites





/* ======== In production, I would abstract all of the following into it's own SCSS file ======== */


$sprites: sprite-map("sprites/buttons/*.png");              // import 1x sprites from buttons subfolder 
$sprites2x: sprite-map("sprites-retina/buttons/*.png");     // import 2x sprites from buttons subfolder


 // $sprites: sprite-map("sprites/buttons/*.png", $spacing: 40px);          // add padding to sprite sheet
 // $sprites2x: sprite-map("sprites-retina/buttons/*.png", $spacing: 80px); // add padding to sprite sheet


.myHoverActiveButton {
	@include retina-sprite(signIn, $hover: true, $active: true);
}

.myHoverButton {
	@include retina-sprite(signIn, $hover: true);
}

.myActiveButton {
	@include retina-sprite(signIn, $active: true);
}

.myBoringButton {
	@include retina-sprite(signIn);
}


Update to reflect new mixin name
Update to reflect new mixin name