Is it possible to change the checkboxes styles from Frequently Bought Together?
Unfortunately, it is not possible to change the color of the checkboxes as form controls are browser and operating system specific. They are displayed differently on Windows, Mac, Linux, desktop, mobile devices, or tablets.
For instance, a recent Chrome Browser update was published informing this type of changes: https://blog.chromium.org/2020/03/updates-to-form-controls-and-focus.html
Below you can see some examples about how are they currently displayed depending on the browser and system:
Chrome on Windows:
Microsoft Edge on Windows:
Opera on Windows:
Safari on iPhone:
Microsoft Edge on iPhone: