handleRadius

HTML

<script src="https://cdn.jsdelivr.net/npm/@jaames/iro@5"></script>
<div id="picker"></div>

JavaScript

const picker = new iro.ColorPicker('#picker', {
	layout: [
		{
			component: iro.ui.Box,
			options: {
				handleRadius: '20',
			},
		},
		{
			component: iro.ui.Slider,
			options: {
				handleRadius: '20',
				sliderType: 'hue',
			},
		},
	],
});