The Horizon Chart for Power BI helps you analyze time-series outliers and predominant patterns with color bands that diverge. The custom visual gives you an easier way to visualize several stacked line or area charts sliced horizontally by categories. The baseline for each slice would be zero and it helps you analyze the outliers in the time-series easily. An enterprise trend split into several multiples of horizon gives you a quick image of where and when the deviation of the outliers had happened.