Perfect Flow

In this game a flow is a quadratic playing field. It contains pairs of same-color points. The goal of the game is to connect each same-color-point-pair with a line. The lines might not cross each other!

This game is based on the "Multicommodity Flow Problem“. The to-be-solved-flows included in this game are perfect flows without exception (this is why this game is called "Perfect Flow"). This means that for each flow there only exists a single solution which filles the field completely. It won't be necessary to draw a line back and forth next to itself to fill the field artificially.
I’m developing this game in my leisure time just for fun.

This app does not require any mysteriously appearing rights which are clearly not required for the app to function as intended. Additionally, there is no annoying, mobile-traffic-snatching advertisement inside this app.

Bugs might be reported and get fixed as soon as possible. Ideas for nice feature are welcome, too :)