The color picker
Hue, saturation, brightness, opacity, hex

The title selected and the color picker opened from the fill swatch

How it is made

FieldWhat it does
Squaresaturation horizontally and brightness vertically: click or drag the dot
Huethe hue slider, from 0 to 360
Opacitythe opacity slider, from 0 to 100
Hexthe color as text: 3, 6 or 8 characters (the last two are the opacity)

What opens it

The Fill and Stroke swatches, the handle of a gradient color stop (in the panel and on the canvas), the color of a filter (Drop shadow, Flood). Whatever opened it determines whose color it is.

How it closes

On its own, when the pointer moves away from the menu and from whatever opened it (after a quarter of a second). It stays open while you hold down a mouse button — you can drag outside the square — or while you type in the box. Every gesture in the picker — a drag in the square, a slider, a typed hex value — is one undo step.