wp.customize( 'color_palette', ( value ) => { value.bind( ( newValue ) => { const newPalette = colorPalettes[ newValue ].colors; Object.keys( newPalette ).forEach( function ( slug ) { const color = newPalette[ slug ]; wp.customize .control( userColorSectionKey + slug ) .setting.set( color ); } ); } ); } );