Still related to the topic: I’m now trying to inject a UNOG.CSS file.
I tried adding inject_bundle in the class __init__, but I got a “manifest.json not found” error.
Than I found the topic: Theme plugin: How to integrate logos and I understood there are differences from 2.1 to 2.2/master in terms of plugin writing: after switching to 2.1 I got a “AttributeError: ‘module’ object has no attribute ‘get_template_customization_paths’” error.
So the question is: what is the “stable” version I should use? 2.1.8 or 2.2master (or something else)?