Custom color field options

I don’t know how to create this option style:

Captura de pantalla 2021-02-15 a las 15.08.58

Or at least change every color when you hover over the option list. Its only a button atm on the navigator, so when I change the hover color of one button it puts the same color on every button.


Here is my site Read-Only: LINK
(how to share your site Read-Only link)