ColorSquareWidget

The saturation/value square — the big field of a classic picker.

Declared in src/libs/libwidgets/components/ColorPickerWidget.hpp.

Detailed description

Hue is fixed by the strip beside it; this widget picks the other two axes: saturation left→right, value bottom→top.

⚠ It takes hue as an INPUT and never derives it. See ColorPickerWidget for why that is not a detail.