If the modification time on any previously read file for the given #GtkSettings has changed, discard all style information and then reread all previously read RC files.
a #GtkSettings
load whether or not anything changed
%TRUE if the files were reread.
Deprecated: Use #GtkCssProvider instead.
See Implementation
If the modification time on any previously read file for the given #GtkSettings has changed, discard all style information and then reread all previously read RC files.