$name, $color in $colors {\n      @include background-variant($name, $color);\n    }\n  }\n}\n\n.bg-gray {\n  background-color: $gray-500;\n  color: color-yiq($gray-500);\n}\n\n.bg-gray-light {\n  background-color: lighten($gray-200, 3%);\n  color: color-yiq(lighten($gray-200, 3%)) !important;\n}\n\n.bg-black {\n  background-color: $black;\n  color: color-yiq($black) !important;\n}\n\n.bg-white {\n  background-color: $white;\n  color: color-yiq($white) !important;\n}\n\n// Gradient Background colors...