headerProps replacing class in v-data-table header object (vuetify 3)

[owenschuldt]

I'm using Vuetify 3 and I cannot figure out the correct way to customize a specific header for a v-data-table inside of the header object. The Vuetify 3 upgrade guide says 'class' was changed to 'headerProps'. I tried using headerProps like:

headerProps: { class:"custom-class" } and headerProps: "custom-class"

Both did not work.