Child theme or multiple page/header.php?

Hi,

I need to be able to deliver 4/5 child themes on the same site at the same time – is this possible?

You might think “Why?” Well because I am making an event website that has a different colour palette, logo and navigation for each event.

As I understand it, you can only have one active child theme running at any one time.

What I want to be able to do is offer-up the following changes for 4, perhaps 5 different sections on a site:

• Colour change – change the colour of styles of headline text and backgrounds for each different section.

• Navigation change – change main nav for each section

• Logo change – change logo for each section.

I have solved the nav issue with a plugin, but I thought that I could use different child themes for each section and alas I understand/believe that I cannot.

Clearly one solution would be to have completely separate sites for each section, but this sounds time-consuming and clumsy. Having said that, it would be relatively easy for me to do this.

The other solution I believe is to create different headers for each section, called-up by header.php and perhaps thus I could change the logo on each page.

I am happy to research and make some changes, unfortunately I cannot show you the site – so all I can ask is whether I should use multiple child themes, sort this via page templates and header.php or if it is the easiest option, build 4/5 micro sites and link them to the main site.