Anatomy
import { PanelFooter, pushRecent } from "chroma-panel";The footer shows the current colour once, alongside the recent-colour history. The history row fades on whichever side has more swatches.
Adding to the history yourself
function pushRecent(list: string[], hex: string, limit?: number): string[]Adds a colour to a recent list, de-duplicated and capped. Exported so your own controls can match the panel's behaviour.
Turn the row off entirely with showRecentColors={false} on the panel, or
control it with recentColors and onRecentColorsChange — see
controlled and uncontrolled.