[zoomablemind]

It's a nice courtesy from the product authors/implementors. Not only it's polite, it also acknowledges your contribution to the idea, not sure to which extent it is formally.

All in all it is a great feeling to see your idea getting a concrete life. In a way, reporting an issue and a possible improvement to any product you care about is an essence of collaboration. Open source further helps to contribute by augmenting such effort with a skill to implement it.