Hi,
unfortunately this is not possible, you should use same workaround at https://www.easy-profile.com/support/how-can-we-use-html-with-checkboxes-and-radio-buttons.html

For example, if you have a simple text options like movie,music,art then with language override you can transform its like this:

<div>Movie</div>

<div>Music</div>

<div>Art</div>

and with a CSS code you can style it, for example with a code like this:

dd.alias_of_fieldValue {font-size:0;} /* hide "," char */

dd.alias_of_fieldValue div{font-size:16px;} /* Set the size of the option */

dd.alias_of_fieldValue div:before{content:"- "} /* Add a simple "-" before option value */

NOTE: replace "alias_of_field" with the alias of the checkbox field

You can see the result in the screenshot (this code from interests field)