private function colorizeRatios(Collection $ratios)
    {
        $colors = ['#F56954', '#00A65A', '#F39C12', '#00C0EF', '#3C8DBC'];

        return $ratios->values()->transform(function (array $values, $key) use ($colors) {
            return $values + ['color' => $colors[$key]];
        });
    }