Mount for blackout roller blind

My wife's blackout roller blind had fallen off the wall because a part of the bracket had broken off (see photo). I quickly opened FreeCAD and reverse-engineered the part. Now the blind is hanging again.

Unfortunately, I no longer know the brand of the blind. But anyone with a similar problem will recognize the part. :-)

Fast print, preferably with minimal tree support. If it helps anyone, I would appreciate a like.