I would like to know what is the minimal fileset needed if I just want to create a style which inherits from another style without absolutely any changes ?
Actually I would like this style working as an alias for another style, in order to “replace” a previously existing style which is no longer available with the latest phpBB version, but I want users who were using this old style to get the replacement after migrating to this latest version.
So likely the style needs to have exactly the same name as the older one.
I tried to just create the directory for this style and the “style.cfg” file inside properly configured for this inheritance, expecting all other files being inherited from the parent style, but this doesn't seem to be enough.
Which other files do I need if I want to fully inherit from the parent style ?
Please note that I don't want to modify anything in the parent style, in case it would be later upgraded.