I am using Gimp 2.8 for Mac OS X, and I would like to change the default text size from 18 pt to 36 pt, so that I don't have to highlight the text and manually change every time I create a new text box. Even after selecting "Save tool options on exit" from the Preferences menu, the font size still goes back to 18 points when I create a new text box.
However I cannot figure out how to do that. All of the tutorials that I can find online appear to be for a Linux version, that looks like it has a different UI. Also, I have seen some answers that suggest there is a ".gimprc" file that can be edited, that has those settings in it. However, I cannot find any such file on my system. I think this may be because I downloaded the .dmg, which said to just open it and drag the executable into the applications folder, and didn't run any kind of installer that would have created the configuration files.
What is the correct way to set the default text size?