When the ‘New Look’ off, I could use JS to get a option's value that I want.
For example:
$("select[data-id='udds_typeofcase.fieldControl-option-set-select']")[0].children[1].innerText;
But when I open the 'New Look', I could not find this element.

So how could I get the option's values with the 'New Look' on?