Just pushed v1.1.0 - actually it is not a "color" picker any more ?
// custom CSS + HTML example
$event->object->setColors('site_bgcolor', [
// custom css
'custom' => [
'background: rgb(34,0,255); background: linear-gradient(90deg, rgba(34,0,255,1) 0%, rgba(0,0,0,1) 100%);',
'Blue to black gradient'
],
// custom html
'custom2' => [
'<div style="width:200px;">
custom html demo ?
</div>',
'Custom HTML demo :)'
],
]);