Please test on theme Boost only
Login as admin
Create a new course
Enrol yourself in the new course
Navigate to your dashboard
Star your course
Verify the star colour is blue.
Navigate to to Site Administration > Appearance > Boost
Change the brand colour to some other colour than blue
Navigate back to your dashboard
Verify the star colour is now the brand colour.
Colors of star on course overview and group messaging are inconsistent.
Group messaging is using text-primary while the messaging not.