Use custom props in theme variants

[i-in-range]

I use @expo/vector-icons library. Its components has prop size. Theme is the good place to place this prop to, becauce of conveniense of managing of responsive values here. But I'm getting standatd error "TypeError: funcsMap[propKey] is not a function... ", because prop size is unavailable in the theme. It is not a resident of the StyleSheet.create object.

Yes, I can use maybe width prop and reassign its value as Icon component needs. But this approach seems enough messy for me. Have you got any idea, how to manage custom props in the theme?