@mussonindustrial/pyro-mui-joy/lib/light/palette/multi-state-button.css

A port of Material UI Joy Theme for Ignition by Inductive Automation

.ia_multiStateButton__button--primary--selected,
.ia_multiStateButton__button--secondary--selected {
    font-weight: 500;
}

.ia_multiStateButton__button--primary--unselected,
.ia_multiStateButton__button--secondary--unselected {
    font-weight: 400;
}