The Color section in the Legend Panel explains what each color represents when a feature is mapped to the Color dimension. It is also a useful way to filter your visualization by showing and hiding specific categories and bins, or filtering out a range of values.
When the Color option is set to Color Bins, the color bar at top of the Color section shows the distribution for each category or bin contained in the feature that is mapped to color. Each segment corresponds to a category below, and the size of each segment corresponds to the percentage of points which are members of that category.
Below the color bar, there is a list of all colors currently shown on the plot. This section shows every category contained in features with 16 or fewer categories, or the 15 biggest categories plus an “Other” category for features with many categories. The list is ordered by the number of points in each category by default, with the “Other” category at the end of the list regardless of size. Each category has a button showing its color on the left, the name of the category in the middle, and two numbers below the category name. These two numbers show the number of visible points out of the total number of points in the dataset for this category.
The list is interactive and is used to quickly show or hide particular bins. Clicking on the name of the category will show exclusively that category and hide others. Clicking on the circular color button will toggle that bin on and off. You can show all Colors again by clicking the Reset button in the Color section of the Legend menu .
When the Color option is set to Color Gradient, you will see a color distribution at the top of the Color section with two sliders that can be moved horizontally. These allow you to filter out points above or below the two sliders. The Details section shows statistics for the feature currently mapped to Color. Color Gradients can be reset the same way as Color Bins, by clicking the Reset button in the Color section of the Legend menu.