The default settings are in the SharedPreferences.json in the user library and are called ThreeDtext:
"ThreeDText": {
"Align": 0,
"Bold": false,
"Extruded": false,
"Extrusion": 0.984251968503937,
"FaceName": "Tahoma",
"Filled": true,
"Height": 100.0,
"Italic": false
These can be changed if you alter them and then quit SketchUp
As they are actually components with the same name of the text, you can make them dynamic and add some info:
It will require some discipline, of course