Joomla : 3.9.13
SPPB : 3.6.4
To overload the template colours is it possible to define in the general settings the main characteristics of typo.
This setting is valid for all created pages.
A change in this setting propagates in all pages unless they have been overloaded in the page itself
Its possible to be inspired by Helix or Gantry5
Thanks
Claude from France