Theme: DUNE

Hi @tshare

Try the snippet below and let me know if it works for you.
It works for me, both in light and dark mode:

input[type=checkbox]:not(:checked) {
    background: transparent;
    scale: 1;
    transition: none;
    border: 1px solid;
}

Edit

I forgot an important detail.
Recently, I’ve introduced coloured checkboxes (dune>colours>custom theme>extra colors>checkbox color), but color is applied only on “checked” boxes and not on “unchecked” boxes.

Since colored checkboxes are already in place, I’ll change unchecked boxes to use another color to look different than hyphen bullets. I hope, this helps.