I have searched for an answer to this problem in Mathematica documentation, googling, and here on this Mathematica.SE forum. So far, no answer that I can find.
When a new Notebook window is opened, the default magnification level is 100 %. It is changeable (I use the selection box at the bottom of the window) to values less and greater percentages. I prefer 125%.
I would like to change the default so that I do not have to continuously make these changes when a new Notebook is opened. I want this default to live across startup/shutdown of Mathematica and my computer (Mac). None of the other techniques I have found allow me to make such a default value change.
I am presuming that there is an init.m or config.m file somewhere in my installation that allows me to make this change. Does anyone know of a method to do this?
My platform is Mac OS X 10.10 (Yosemite). I am running Mathematica 10.0.1.