I have suggestion for new feature to upload module manually instead of copying to the directory directly. Now, installing module locally in F2.4 is really troublesome because we need to comment some checking in the install module function. Maybe if there is a feature to upload module and autoextract it and then generating module info will make it easier.
Another suggestion is to add some checking if function not exist in every UI related function definition. With that, I think we can override the function to define our own UI function, especially if we want to create responsive theme. We just need to include our custom UI function before standard FA UI function.