body {
    margin: 0px;
    font-family: 'Arial';
    background-color: grey;
}

#root {
    width: 100%;
    height: 100%;
    min-width: 100%;
    max-width: 100%;
    min-height: 100%;
    max-height: 100%;
}

#chart, .header {
    background-color: black;
}

:root {
    --swatch-dimension: 16px;
}

.swatch {
    min-width: var(--swatch-dimension);
    max-width: var(--swatch-dimension);
    min-height: var(--swatch-dimension);
    max-height: var(--swatch-dimension);
}