Treemap

Composition · Hierarchical part-to-whole

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

When to use it

Nested rectangles sized by value — handles far more categories than a pie and shows hierarchy (category → subcategory) via nesting. Great for “where does the total live?” questions.

Field wells

Well	Accepts	Notes
Category	dimension
Value	measure
Color	dimension

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