.default-font-theme {
    /* font for standard text */
    --primary-font: "Roboto";
    /* font for data readouts and tables where standard font may be difficult to read */
    --data-font: "Courier New";
    /* currently used font size */
    --font-size: 1.4rem;
    /* tiny font size (50%) */
    --tiny-font-size: 0.7rem;
    /* small font size (75%) */
    --small-font-size: 1rem;
    /* default font size (basis for scaled font sizes -- 100%) */
    --default-font-size: 1.4rem;
    /* large font size (150%) */
    --large-font-size: 2.1rem;
    /* huge font size (200%) */
    --huge-font-size: 2.8rem;
}