Setting custom properties for a paint worklet to use

file.css

.jagged {
    background: paint(jagged-edge);

    /* other styles as needed... */
}

.slot:nth-child(1) .jagged {
    --tooth-width: 50px;
    --tooth-height: 25px;
}

.slot:nth-child(2) .jagged {
    --tooth-width: 2rem;
    --tooth-height: 3rem;
}

.slot:nth-child(3) .jagged {
    --tooth-width: calc(33vw - 31px);
    --tooth-height: 2em;
}