Sparkline - Custral Docs

A sparkline, a trend with no axes, sized for a stat card.

When to use

Sparklines are stripped-down trend lines designed to fit inside a card or dashboard tile alongside a big-number headline. Use them when the trend matters less than the current value, but you still want a one-glance sense of direction.

Required data shape

X axis: a date property.
Y axis: a numeric or aggregated property.

Configuration

Setting	What it does
X-axis	The date property plotted along the horizontal axis.
Y-axis	The numeric value (or aggregation) the line traces.
Time bucket	How dates are grouped: hour, day, or week.
Headline metric	The big number shown next to the line: current value, change (delta), or maximum.

Limitations

No axis labels or grid by design, pair with the headline number for context.
Bucket counts under ~6 produce a near-flat line; use a Line chart for short windows.