#ffd000 — Public Fediverse posts

@trini if you're not that into CSS, and furthermore, into GTK-flavoured CSS, this might provide some helpful hints overall. This is how I'm configuring the battery widget to have a background colour for its status:

@keyframes blink {
    to {
        background-color: #ffffff;
        color: #000000;
    }
}

/*
#battery.charging {
    background-color: #00ff00;
    color: #000000;
}
*/
#battery:not(.charging):not(.full) {
    background-color: #ffffbb;
    color: #000000;
}
#battery.warning:not(.charging) {
    background-color: #ffd000;
    color: #000000;
}
/* Using steps() instead of linear as a timing function to limit cpu usage */
#battery.critical:not(.charging) {
    background-color: #ff0000;
    color: #ffffff;
    animation-name: blink;
    animation-duration: 0.5s;
    animation-timing-function: steps(12);
    animation-iteration-count: infinite;
    animation-direction: alternate;
}

The Styling wiki page may provide more hints, and the respective module wiki pages.