Zoho Analytics allows you to categorize the data by color intensity. This will be pretty useful for visualizing data based on factors like volume of occurence or create a performance scale (bad to good) etc.
To read the data by color intensity, you need to add an aggregate numerical column to the
Color
shelf, and set the legend to continuous band as shown in the below animation.
This option is available in Bar, Bubble, Packed Bubble and Heat Map charts. However, it is best visualized in Heat Map charts.