Found /usr/bin/harbour-fotokopierer (5,9MB) and had a look into this file using GHex on computer. This file seems to include everything, also the translations. No idea how to handle or tweak this.
edit: Fotokopierer is nearly perfect app and fulfills all my needs except one thing: When selecting image section, the reaction of moving the buttons for the outline is so boring slow and delayed, I want to make it faster or reduce the delays.
@attah what app should I build? I have no idea. There are so much apps that only need a little maintaining but basially are fine.