You can see the exact style rules that FoldingText for Atom is using here:
And really most of what you are interested in is probably here:
FoldingText for Atom uses LESS to define styles. That allows you to use variables and some other neat features. For example if you search through FoldingText’s styles you’ll see
@ft-font-size used in a few different places.
LESS is designed so that it’s easy to override variables… unfortunately Atom’s user style sheet doesn’t currently get mixed into LESS files… the result being that you can just define a new value for
@ft-font-size in your user style sheet Someday hopefully.
In the meantime your options are:
When just messing around you could did into FoldingText’s package on your machine and change
@ft-font-size. Then reload Atom to see the results.
Or look through those files to see everywhere that @ft-font-size is used and manually override each of those places with your own value. So in the case of fine size I think that would be: