The Card displays a sparkline which is a mini-chart that gives an idea of the trend of the KPI.

## Sparkline Scale

The vertical Scale of the sparkline chart can be configured, in % of the height of the row :

• `1` means to take the full height of the row
• `0.9` means almost the full height
• `0.1` means a very thin display

## Sparkline Color

The Color Type of the sparkline chart can be :

• the Direction Color that depends on the distance between the Value and the Target, and whether we consider that “good” or “bad” (see “Colors and result interpretation”)
• or a Custom Color that is fixed

The Opacity of the color can also be configured.

## Sparkline Interpolation

The sparkline chart is interpolated.
Available interpolation methods are :

### basis

A cubic basis spline
The result is a smooth curve which doesn’t exactly pass through the data points themselves.

### linear

A series of interconnected lines.
The result is that of a line chart.

### monotone

A cubic spline that preserves monotonicity in y, assuming monotonicity in x.
The result is a smooth curve which goes through all data points and doesn’t overshoot.

### step

A step line centered on the data point.
The result is a step line which is constant around the data points.

### step-after

A step line starting on the data point.
The result is a step line which is constant after the data points.

### step-before

A step line ending on the data point.
The result is a step line which is constant before the data points.