You can customize Theme Colors, Font style & Font colors for the Admin Portal and for the Customer Portal as well. You can also customize the below elements: 
– Base Font Family: Choose a font to use for the main body text and for the menus. 
– Title/Heading Font Family: Choose a font to use for all the headings and titles of the Portal.
– Theme Background Color: Choose color to display as a background color to the body part.
– Foreground Color: Choose color to display content background color.
– Primary Color: Choose a primary color to be displayed most frequently across all the modules. This color will appear for text / iconography.
– Success Color: Choose color to display when the action performs and gets success. (Toast Notification)
– Danger/Fail Color: : Choose color to display when the action performs, fail or any error. (Toast Notification)
– Warning Color: Choose color to display warning. (Toast Notification)
– Base Font Color: Choose color for body text and description of Portal main content.
– Link Color: Choose color for all text to which links have been added
– Reset: You can set back to default theme and fonts by clicking on the Reset button.
By clicking on the Save button, the theme & fonts of the Admin Portal & Customer Portal will be updated.