Hey crysthala, you might like to see
this if you're still in tutorial mode and you want to see what happened.
See how your work is shown there? "render lighting icons". That's around the time where you uploaded the files to your branch and made the pull request, right?
Then two hours later Zini's commit: "Merge remote-tracking branch 'crysthala/master'. What happened was that git looked at the differences between what openmw/master looked like when you forked it and then what you made of your branch (crysthala/master) since then. The difference was those three pictures, so the master was then changed to include those changes you made. Your work got absorbed into the collective.
Thanks to that, Zini could do some more work today: "added lighting mode toolbar icons". If you click on that title, you can see what he did: He changed three lines in scenewidget.cpp and added five lines to resources.qrc, the latter of which are references to your pictures.
To commemorate this occasion,
your profile page now shows a green blip where you contributed.
Git is pretty cool.