I find font size of Text cells too small and I like displaying them with background colour... I've read this question and learned about
Menu/Format/Option Inspector... where I managed to change font size, but it affects all cells.
I would like to change separately Text, Input and Output formatting and to save these settings as default for displaying any notebooks. So, when I next time select a cell, then go to
Menu/Format/Style and choose Text or Input or Output; it applies my default formatting for Text, Input, Output or anything else.
Is this supported with
Option Inspector or some other tool?