primevue-mirror/components/lib/themes/aura/fieldset/index.js

export default {
    root: {
        background: '{content.background}',
        borderColor: '{content.border.color}',
        color: '{content.color}'
    },
    legend: {
        background: '{content.background}',
        color: '{content.color}',
        hoverBackground: '{content.hover.background}',
        hoverColor: '{content.hover.color}'
    },
    toggleIcon: {
        color: '{text.muted.color}',
        hoverColor: '{text.hover.muted.color}'
    }
};