.o_calendar_header {
	@for $index from 1 through length($o-colors-complete) {
		$color: nth($o-colors-complete, $index);
		$color-subtle: mix($o-white, $color, 55%);
		$color-hover: mix($o-white, $color, 45%);

		.o_gantt_color_#{$index - 1} {
			color: color-contrast($color-subtle);
			background-color: $color-subtle;
			border-color: $color-subtle;
		}

		.btn.o_gantt_color_#{$index - 1}:hover {
			color: color-contrast($color-hover);
			background-color: $color-hover;
			border-color: $color-hover;
		}
	}
}
