message: Expose the color variables as CSS classes
diff: }
  }
  +.bg-black {
  + background-color: color('black');
  +}
  +.color-black {
  + color: color('black');
  +}
  +.bg-white {
  + background-color: color('white');
  +}
  +.color-white {
  + color: color('white');
  +}
  +@each $hue in map-keys($colors) {
  + @each $shade in map-keys(map-get($colors, $hue)) {
  + .bg-#{$hue}-#{$shade} {
  + background-color: color($hue, $shade);
  + }
  + .color-#{$hue}-#{$shade} {
  + color: color($hue, $shade);
  + }
  + }
  +}
  +
  .clearfix {
  clear: both;
  }
  