Size
#1. First, click on the Site Styles icon
#2. Next, choose FONTS
#3. Click on the blank space in the Navigation bar
#4. The right side will open a new box, scroll down to the bottom and change the size you want
Color
#1. First, click on the Site Styles icon
#2. Choose COLORS
#3. Click on your page color theme (Our page color theme is Lightest 1)
#4. Click on Navigation Links to change the Navigation bar color