Compatibility with WP multisite?

Interesting. Is your multisite configured sor sub-domains or sub-directories?

From what I read, themes in multisite are the same accross all the sites : https://codex.www.ads-software.com/Multisite_Network_Administration#Themes So it’s the normal WordPress behavior to link to the home site. In addition, I can’t find a wordpress php function to get the theme directory of a sub-site (probably because there are no theme directory for them).

The only option I see would be to have a checkbox or dropdown list at the top of the setting page to chose between “theme relative path” or “absolu path”.

I’m not sure what the template directory URL would be, but I think it might just be get_bloginfo('template_directory').

In looking at the stylesheet URL in the source code of the output of my site when the stylesheet switcher plugin, it says something like:

https://example.com/wp/trek/wp-content/themes/twentytwelve/style.css

Where wp is the base site and trek is the subsite.

The real path should be:
https://example.com/wp/wp-content/themes/twentytwelve/style.css

And is your Multisite configured for subdomains or for subdirectories? This can influence WordPress url functions.

sorry, forgot to mention that. It is configured for subdirectories.

I tested, and my plugin works with multisite too. If you’ve put your css files in your theme folder, it should be working.

In your example, “https://example.com/wp/trek/wp-content/themes/twentytwelve/style.css” is correct. But WordPress multisite needs to be correctly configured with .htaccess to rewrite the url. Please verify that.

Can you share the url of your site so I can have a look? Are you working in local or on a server?

Awesome. It does work. Did you have to update the plugin to make it work with multisite, or was I just doing something wrong? Either way, thank you. It’s an awesome plugin.

Great!
Nope, I did not change anything.
I’m happy it works and you enjoy it.
If you want, you could evaluate/review the plugin. Thanks!