Damir, I think you try really hard to find edge cases which make absolutely no sense! No one in his right mind would use an iPhone for that! Why do you insist so hard on great visuals on an iPhone, also with plain lyrics? Using the iPhone is a way to have an emergency failover device available. I will not invest time into complicated optimizarions for that! Anyone who is serious about it uses primarily an iPad and readability of PDF sheets (and lyrics) on iPads is great. I've been using PDF files on stage for the last 10 years and love it.
And regarding the use of PDFs: You truly don't understand how people like me and @SoloGuy use PDFs on stage. But that's fine, you don't need to. You have your workflow which is great. But don't assume that everyone works the same way as you do. Different users have different needs. Not every function that Stage Traxx has needs to make sense to you, but believe me, every function that has been added in the last couple of years was requested by actual users of the app!
That said, I have made up my mind and version 3.5 will definitely focus on PDF files. So I think we can close this discussion.