Vertical bars for a sequential trend.

One bar emphasised, the rest faded.

Seven bars, one per weekday — iOS rainbow palette.

Category split with a centered label.

Concentric goals, gradient stroke.

Smoothed area with a gradient fill.

Several series with dot markers.

Min-max pill columns (heart-rate style).

Horizontal ranked list with value tags.

Smoothed line with a trailing dot.

Per-bucket totals split by category.