I just start to learn RN, but the docs in https://reactnavigation.org/docs/tab-based-navigation/ did not show how to set a tabBarIcon's size, I tried to add an attribute in <Tab.Navigator> like the pic. If I manually set the size={38}, it works. However, if there is a better way to set like a global size which means I just need to change one var to set the whole icon size
