Area

Trend · Trends with magnitude emphasis

Added from the Insert tab; configure it in the card’s Data and Format tabs.

When to use it

A line with the space under it filled — same data as a line chart, more visual weight on how much. One or two series at most; fills occlude each other quickly.

Field wells

Well	Accepts	Notes
X Axis	dimension
Values (Y)	measures	multiple measures = multiple series; each has a quick-calc dropdown
Series / Color	dimension	splits each value into one series per category value
Small multiples	dimension	one mini-panel per value (trellis)
Tooltip	fields	extra fields shown on hover

Measure wells carry a quick-calc dropdown (running total, YoY %, % of total, …); SquareX measures drop in like any field.

Format options that matter here

opacity
smooth/stepped
markers

The full panel is described in Charts & formatting.