The problem with styles and extensions is twofold.
1. Extensions are, in general, designed to work with prosilver based styles but some styles are not prosilver based and this is where the problems start, and in fact with some styles it is not possible to make some extensions work due to the way in which they have been created (I am not saying that there is anything wrong with them). This has been, and probably always will be, an issue - maybe it will be less of a problem with the "new" style in phpBB 4.0
2. The other problem is that a style has to be kept up to date with each released version of phpBB which if it is prosilver based is not that big a problem to do by anyone, but for a non prosilver style then it could be a problem.
The answer is that if you are requesting a custom style then you should insist that it is prosilver based.
Remember: You only know what you know and - you don't know what you don't know!
My CDB Contributions | How to install an extension
I will not be accepting translations for any of my extensions in Github - please post any translations in the appropriate topic.
No support requests via PM or email as they will be ignored