.bg-fill {
    background-color: white;
}

body[data-theme="light"] { img.wavedrom { color-scheme: light; } }
body[data-theme="dark"] { img.wavedrom { filter:invert(1)} }

@media (prefers-color-scheme:dark){
    body[data-theme="auto"]  { img.wavedrom { filter:invert(1)} }
}