This type inherits from LinearChartSettingsSeriesStyle.
Depth for column. Use it to achieve 3D effect.
Brightness applied to depth components.
Fill gradient. Allows building a gradient fill, bound to values. Contains array of value-color pairs. For example: [[-20, 'rgba(0,0,255,0.4)'],[30,'rgba(255,0,0,0.7)']]. If specified fillGradientMode: "horizontal" or "vertical", then value denotes fraction of the column width and must be in interval from 0 to 1 - this feature is available for columns only For example: [[0,"black"],[0.5,"red"],[1, "orange"]].
Fill gradient orientation for manual fill gradient mode. In use with fillGradient property. "null" for default fillGradient mode, "vertical" for vertical gradient, "horizontal" for horizonal rendering"
Fill gradient type lets you have automated fillGradient steps based on different shapes. Supported types are: null | cylinder
Specifies the URL to the image that will be used as the repeated fill pattern for the series.
fillPattern is specified,
fillGradient is ignored. If
fillColor is specified together with
fillPattern, it will be
used as the background color for the pattern.
A linear gradient for color change along a line between the column bottom and upper side. Specify "1" for no gradiend. Values 0..` will make the bottom part of columns slightly darker.
Style settings for the legend item that is rendered for the series.
Configures the marker that is shown in the legend. Note that the default (
shape: null) means that instead of the
plain marker, an icon representing the series visual style will be used.
Array of line dash pattern to have a dashed line. The array contains length of dash followed by length of space in pixels. A sequence of multiple dash-space values is supported. In case you want to set a solid line, pass empty array: 
Minimum height of a column in px.
Padding for column. 0th element - left padding, 1st element - right padding.
Shadow blur effect range.
Shadow color of column. If undefined, no shadow will be applied. Leave empty to use default shadow or set your own shadow color.