First Iīd like to say sorry if Iīm stepping over any boundaries here

The reason for my question is that I really would like to have the way they use linebreaks in PLi-image on the VIX-image.
But I donīt know where to start to make it happen.
I figure since the PLi is open source you could find the section in the PLi-image for subtitles and compare it with the one in the originalimage or even in the VIXimage if possible and then merge them to have the best of two worlds?

But i donīt know how the images are constructed/built.
Are all images constructed like PLi wich you can see on their site?

Regards Berggren