Bottom navigation
Elevation
Defined as @dimen/material_elevation_bottom_nav_bar.
Fixed bottom navigation bar
Action size

@dimen/material_bottom_nav_bar_fixed_action_minimum_width@dimen/material_bottom_nav_bar_fixed_action_maximum_width@dimen/material_bottom_nav_bar_action_padding_horizontal
Bar specs

@dimen/material_bottom_nav_bar_height@dimen/material_bottom_nav_bar_action_icon_size@dimen/material_bottom_nav_bar_action_label_padding_bottom@dimen/material_bottom_nav_bar_fixed_action_active_icon_padding_top@dimen/material_bottom_nav_bar_fixed_action_inactive_icon_padding_top@dimen/material_bottom_nav_bar_fixed_action_active_label_text_size@dimen/material_bottom_nav_bar_fixed_action_inactive_label_text_size
Shifting bottom navigation bar
Action size

@dimen/material_bottom_nav_bar_shifting_action_active_maximum_width@dimen/material_bottom_nav_bar_shifting_action_active_minimum_width

@dimen/material_bottom_nav_bar_shifting_action_inactive_maximum_width@dimen/material_bottom_nav_bar_shifting_action_inactive_minimum_width
Bar specs

@dimen/material_bottom_nav_bar_height@dimen/material_bottom_nav_bar_action_icon_size@dimen/material_bottom_nav_bar_shifting_action_active_icon_padding_top@dimen/material_bottom_nav_bar_action_label_padding_bottom@dimen/material_bottom_nav_bar_shifting_action_inactive_icon_padding_vertical@dimen/material_bottom_nav_bar_shifting_action_active_label_text_size